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The New Zealand bellbird (''Anthornis melanura''), also known by its
Māori language Māori (; endonym: 'the Māori language', commonly shortened to ) is an Eastern Polynesian languages, Eastern Polynesian language and the language of the Māori people, the indigenous population of mainland New Zealand. The southernmost membe ...
names korimako, makomako and kōmako, is a medium-sized
species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
honeyeater The honeyeaters are a large and diverse family, Meliphagidae, of small to medium-sized birds. The family includes the Australian chats, myzomelas, friarbirds, wattlebirds, miners and melidectes. They are most common in Australia and New Gui ...
endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
. It has been the only living member of the genus '' Anthornis'' since the Chatham bellbird went extinct in the early 20th century. The bellbird's closest living relative is the only other New Zealand honeyeater, the
tūī The tūī (''Prosthemadera novaeseelandiae'') is a medium-sized bird native to New Zealand. It is blue, green, and bronze coloured with a distinctive white throat tuft (poi). It is an endemism, endemic passerine bird of New Zealand, and the on ...
(''Prosthemadera novaeseelandiae''). The bellbird forms a significant component of the famed New Zealand dawn chorus of
birdsong Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs (often simply ''birdsong'') are the bird sounds that are melodious to the human ear. In ornithology and birding, songs (relatively complex vocalization ...
, which was much noted by early European settlers. Exceptional singing abilities were already observed by Captain
James Cook Captain (Royal Navy), Captain James Cook (7 November 1728 – 14 February 1779) was a British Royal Navy officer, explorer, and cartographer famous for his three voyages of exploration to the Pacific and Southern Oceans, conducted between 176 ...
, who described its song as "like small bells most exquisitely tuned". Bellbirds measure about in length, with females weighing approximately and males . Males are mostly olive-green with paler underparts, and bluish-black wings and tail. Females are paler and browner. Like other honeyeaters, the bellbird has a brush-like tongue that enables effective feeding on
nectar Nectar is a viscous, sugar-rich liquid produced by Plant, plants in glands called nectaries, either within the flowers with which it attracts pollination, pollinating animals, or by extrafloral nectaries, which provide a nutrient source to an ...
from deep flowers. The species is common across much of New Zealand, its offshore islands, and the
Auckland Islands The Auckland Islands ( Māori: ''Motu Maha'' "Many islands" or ''Maungahuka'' "Snowy mountains") are an archipelago of New Zealand, lying south of the South Island. The main Auckland Island, occupying , is surrounded by smaller Adams Island ...
, but it is scarce north of
Waikato The Waikato () is a region of the upper North Island of New Zealand. It covers the Waikato District, Waipā District, Matamata-Piako District, South Waikato District and Hamilton City, as well as Hauraki, Coromandel Peninsula, the nort ...
and across the
Canterbury Plains The Canterbury Plains () are an area in New Zealand centred in the Mid Canterbury, to the south of the city of Christchurch in the Canterbury region. Their northern extremes are at the foot of the Hundalee Hills in the Hurunui District, and ...
and
Central Otago Central Otago is an area located in the inland part of the Otago region in the South Island of New Zealand. The motto for the area is "A World of Difference". The area is dominated by mountain ranges and the upper reaches of the Clutha River ...
. Its
habitat In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...
includes both native and exotic forests and
scrublands Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It ...
, and it is commonly found in parks and gardens. Bellbirds feed on nectar, fruit, honeydew, and insects. During the breeding season, they become highly
territorial A territory is an area of land, sea, or space, belonging or connected to a particular country, person, or animal. In international politics, a territory is usually a geographic area which has not been granted the powers of self-government, ...
and aggressively defend their territory against intruders. Bellbirds form
monogamous Monogamy ( ) is a relationship of two individuals in which they form a mutual and exclusive intimate partnership. Having only one partner at any one time, whether for life or serial monogamy, contrasts with various forms of non-monogamy (e.g. ...
pairs with long-lasting bonds that can span many years. Females typically lay around 3–4 eggs and incubate them for about 13–15 days.
Fledging Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight. This term is most frequently applied to birds, but is also used for bats. For altricial birds, those that spend more time in vulnerable c ...
occurs approximately 19 days after hatching. Bellbirds have modified their ninth primary flight feathers, allowing them to produce specific whirring sounds in flight that they utilise during courtship and territorial defence. The bellbird is regarded as ''
taonga ''Taonga'' or ''taoka'' (in South Island Māori) is a Māori-language word that refers to a treasured possession in Māori culture. It lacks a direct translation into English, making its use in the Treaty of Waitangi significant. The current ...
'' (cultural or spiritual treasure) by the
Māori Māori or Maori can refer to: Relating to the Māori people * Māori people of New Zealand, or members of that group * Māori language, the language of the Māori people of New Zealand * Māori culture * Cook Islanders, the Māori people of the Co ...
, who traditionally valued it for both its meat and its melodious singing abilities.


Taxonomy and nomenclature


History and names

The first Europeans to encounter New Zealand bellbirds were members of the
first voyage of James Cook The first voyage of James Cook was a combined Royal Navy and Royal Society expedition to the south Pacific Ocean aboard HMS Endeavour, HMS ''Endeavour'', from 1768 to 1771. The aims were to observe the 1769 transit of Venus from Tahiti and to ...
(1768–1771). When anchored at Queen Charlotte Sound, the voyage botanist
Joseph Banks Sir Joseph Banks, 1st Baronet, (19 June 1820) was an English Natural history, naturalist, botanist, and patron of the natural sciences. Banks made his name on the European and American voyages of scientific exploration, 1766 natural-history ...
wrote in his diary on 17 January 1770 about a local dawn chorus: "Their voices were certainly the most melodious wild musick I have ever heard, almost imitating small bells but with the most tuneable silver sound imaginable". It is assumed that the chorus was created by bellbirds.
Johann Reinhold Forster Johann Reinhold Forster (; 22 October 1729 – 9 December 1798) was a German Reformed pastor and naturalist. Born in Tczew, Dirschau, Pomeranian Voivodeship (1466–1772), Pomeranian Voivodeship, Polish–Lithuanian Commonwealth (now Tczew, Po ...
and
Anders Sparrman Anders Sparrman (27 February 1748 – 9 August 1820) was a Swedish naturalist, abolitionist and an apostle of Carl Linnaeus. Biography left, Miniature of Sparrman at the time of his travels with James Cook. By unknown artist. Born in Tensta ...
collected the first specimens in April 1773 during Cook's second voyage. Forster illustrated the bellbird in
Dusky Sound Tamatea / Dusky Sound is a fiord on the southwest corner of New Zealand, in Fiordland National Park. Geography One of the most complex of the many fiords on this coast, it is also the largest at 40 kilometres in length and eight kilometres wi ...
, however his illustration remained unpublished for many years. John Latham published a description of the bellbird in his 1782 work ''A General Synopsis of Birds''. He mentioned that the bellbird "has an agreeable note" and that because of its ability to imitate the notes of other birds, "it was called by the English the ''Mocking-bird''". Latham, who at that time created English names for species, and did not start applying Latin
binomial name In taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, altho ...
s until a 1790 publication, assigned it to the Creeper genus and named the species the Mocking Creeper. The specimen he described was in the Leverian Museum in London, but has been lost, which probably happened when the Leverian collection was broken up and sold by auction in 1806. Sparrman published his own
description Description is any type of communication that aims to make vivid a place, object, person, group, or other physical entity. It is one of four rhetorical modes (also known as ''modes of discourse''), along with exposition, argumentation, and narr ...
of the species in 1786 and coined the binomial name ''Certhia melanura''. His description was based on a specimen in the private museum of in Sweden, which held birds that Sparrman had collected on the voyage with Cook and at the
Cape of Good Hope The Cape of Good Hope ( ) is a rocky headland on the Atlantic Ocean, Atlantic coast of the Cape Peninsula in South Africa. A List of common misconceptions#Geography, common misconception is that the Cape of Good Hope is the southern tip of Afri ...
, where he lived before and after the voyage. He erroneously wrote in the description that the specimen was from the Cape of Good Hope (in the original text he used the Cape's
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
name, '). In the past, mislabelling specimens was quite common and Sparrman made exactly the same mistake with two other New Zealand birds, the
rifleman A rifleman is an infantry soldier armed with a rifling, rifled long gun. Although the rifleman role had its origin with 16th century hand cannoneers and 17th century musketeers, the term originated in the 18th century with the introduction o ...
and piopio. The type locality was later corrected to Queen Charlotte Sound. Parts of Carlson's collection ended up in the
Swedish Museum of Natural History The Swedish Museum of Natural History (), in Stockholm, is one of two major museums of natural history in Sweden, the other one being located in Gothenburg. The museum was founded in 1819 by the Royal Swedish Academy of Sciences, but goes bac ...
and the
type specimen In biology, a type is a particular wikt:en:specimen, specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally associated. In other words, a type is an example that serves to ancho ...
was there as of 1857, but it was not found there in a 1926 study. The
specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...
''melanura'' means "black-tailed" (from
Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...
', "black", and ', "tail"). In
Māori Māori or Maori can refer to: Relating to the Māori people * Māori people of New Zealand, or members of that group * Māori language, the language of the Māori people of New Zealand * Māori culture * Cook Islanders, the Māori people of the Co ...
, the bellbird is known by several names, including ', ', ', ' and '. The male bellbird is known as ' or '. The English common name "bellbird" originates from the imaginative similarity of one of its notes to the distant ringing of a bell. The subspecies epithet ''oneho'' is named after a hill (216 m) on Aorangi Island (one of the
Poor Knights Islands The Poor Knights Islands (Māori: ''Tawhiti Rahi)'' are a group of islands off the east coast of the Northland Region of the North Island of New Zealand. They lie to the northeast of Whangārei, and offshore halfway between Bream Head ...
). The hill was named after Oneho, the wife of Tatua, the last chief of the Ngatitoki
hapū In Māori language, Māori and New Zealand English, a ' ("subtribe", or "clan") functions as "the basic political unit within Māori society". A Māori person can belong to or have links to many hapū. Historically, each hapū had its own chief ...
that inhabited the island until the 1820s. ''Obscurus'', another subspecies epithet, comes from Latin ' ("dark", "dusky").


Classification

The bellbird was originally placed into the genus ''
Certhia '' Certhia '' is the genus of birds containing the typical treecreepers, which makes up the family Certhiidae. The typical treecreepers occur in many wooded parts of the North Temperate Zone. They do not normally migrate other than for local m ...
.'' In 1840,
George Robert Gray George Robert Gray (8 July 1808 – 6 May 1872) was an English zoology, zoologist and author, and head of the Ornithology, ornithological section of the British Museum, now the Natural History Museum, London, Natural History Museum, London f ...
established a genus '' Anthornis'', where he moved the bellbird. The bellbird is the
type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...
of the genus. This classification has been widely accepted since then. For a long time, the New Zealand bellbird was the sole representative of the genus ''Anthornis''. The Chatham bellbird (''A. melanocephala''), which became
extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
in the early 20th century, was formerly classified as a
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
of the New Zealand bellbird, as ''A. melanura melanocephala''. The Chatham bellbird is now recognised as a separate species and a second member of the genus. The New Zealand bellbird and the
tūī The tūī (''Prosthemadera novaeseelandiae'') is a medium-sized bird native to New Zealand. It is blue, green, and bronze coloured with a distinctive white throat tuft (poi). It is an endemism, endemic passerine bird of New Zealand, and the on ...
(''Prosthemadera novaeseelandiae'') are the only representatives of
honeyeater The honeyeaters are a large and diverse family, Meliphagidae, of small to medium-sized birds. The family includes the Australian chats, myzomelas, friarbirds, wattlebirds, miners and melidectes. They are most common in Australia and New Gui ...
s (Meliphagidae) in New Zealand. The hihi or stitchbird (''Notiomystis cincta''), another New Zealand endemic bird, was originally considered to be a honeyeater also, but it is now believed to constitute its own
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
family Notiomystidae. A
molecular A molecule is a group of two or more atoms that are held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions that satisfy this criterion. In quantum physics, organic chemistry, ...
study from 2017 identified the Chatham bellbird as the closest relative to the New Zealand bellbird. Both species constitute a
clade In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
to which the tūī is a
sister taxon In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and ...
. Other close relatives of the bellbirds and the tūī are the marbled and plain honeyeaters from
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...
. Their
phylogenetic In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical dat ...
relationships are shown in the
cladogram A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not s ...
below:


Subspecies

There are three recognised
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
of the New Zealand bellbird with the following distribution: * ''A. melanura melanura'' (Sparrman, 1786) – occurs in the
North Island The North Island ( , 'the fish of Māui', historically New Ulster) is one of the two main islands of New Zealand, islands of New Zealand, separated from the larger but less populous South Island by Cook Strait. With an area of , it is the List ...
,
South Island The South Island ( , 'the waters of Pounamu, Greenstone') is the largest of the three major islands of New Zealand by surface area, the others being the smaller but more populous North Island and Stewart Island. It is bordered to the north by ...
,
Stewart Island Stewart Island (, ' glowing skies', officially Stewart Island / Rakiura, formerly New Leinster) is New Zealand's third-largest island, located south of the South Island, across Foveaux Strait. It is a roughly triangular island with a la ...
and
Auckland Islands The Auckland Islands ( Māori: ''Motu Maha'' "Many islands" or ''Maungahuka'' "Snowy mountains") are an archipelago of New Zealand, lying south of the South Island. The main Auckland Island, occupying , is surrounded by smaller Adams Island ...
* ''A. melanura oneho'' ( Falla, 1948)
Manawatāwhi / Three Kings Islands The Manawatāwhi / Three Kings Islands (Manawatāwhi is also the Māori language, Māori name for the largest island) are a group of 13 uninhabited islands about northwest of Cape Reinga / Te Rerenga Wairua, New Zealand, where the Pacific Oce ...
* ''A. melanura obscura'' (Bartle & Sagar, 1987)
Poor Knights Islands The Poor Knights Islands (Māori: ''Tawhiti Rahi)'' are a group of islands off the east coast of the Northland Region of the North Island of New Zealand. They lie to the northeast of Whangārei, and offshore halfway between Bream Head ...


Description

Bellbirds are medium-sized honeyeaters, about 17–20 cm in length from the tip of their
beak The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking, grasping, and holding (in probing for food, eating, manipulating and ...
to the end of their
tail The tail is the elongated section at the rear end of a bilaterian animal's body; in general, the term refers to a distinct, flexible appendage extending backwards from the midline of the torso. In vertebrate animals that evolution, evolved to los ...
. Females weigh about 25g and males 33g. Males have an olive-green body with a dark purplish sheen on their head. Their belly and flanks are lighter. The uppertail is black-brown with a narrow
iridescent Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear gradually to change colour as the angle of view or the angle of illumination changes. Iridescence is caused by wave interference of light in microstruc ...
blue-black edge on most feathers. The upperwing
coverts A covert feather or tectrix on a bird is one of a set of feathers, called coverts (or ''tectrices''), which cover other feathers. The coverts help to smooth airflow over the wings and tail. Ear coverts The ear coverts are small feathers behind t ...
are mostly dark olive-green, with blackish inner webs. The
vent Vent or vents may refer to: Science and technology Biology *Vent, the cloaca region of an animal *Vent DNA polymerase, a thermostable DNA polymerase Geology *Hydrothermal vent, a fissure in a planet's surface from which geothermally heated water ...
and undertail-coverts are pale yellow to off-white, and the thighs are grey. The underwing is mainly grey with a dark olive leading edge, pale-yellow secondary coverts, and a brown tint to the
remiges Flight feathers (''Pennae volatus'') are the long, stiff, asymmetrically shaped, but symmetrically paired pennaceous feathers on the wings or tail of a bird; those on the wings are called remiges (), singular remex (), while those on the ta ...
. There is a yellow patch at the bend of a folded wing. The
iris Iris most often refers to: *Iris (anatomy), part of the eye * Iris (color), an ambiguous color term *Iris (mythology), a Greek goddess * ''Iris'' (plant), a genus of flowering plants * Iris (given name), a feminine given name, and a list of peopl ...
of the male is red. Females are slightly smaller than males. Their
plumage Plumage () is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can b ...
is duller and much browner than adult males. The gloss on the head is bluish, and there is a narrow white stripe starting at the
gape The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for pecking, grasping, and holding (in probing for food, eating, manipulating and ca ...
and continuing below the eye. Upperparts are dark olive-brown with dark brown uppertail and olive-edged outer webs. The upperwing is mostly dark olive-brown with dark brown inner webs and olive outer edges. Underparts are mostly olive-brown with a patch of pale yellow feathers on the flanks, less prominent than in adult males, and pale olive to off-white vent and undertail-coverts. The undertail is brownish grey, and the underwing resembles that of an adult male. The iris of a female is brown. Bare parts of males and females are the same. The bill is black and slightly curved downwards. Legs are grey-black, claws brown. Similar to other honeyeaters, bellbirds have a brush-like tongue that is used to collect nectar deeply from flowers. The tongue is longitudinally grooved, and its tip is divided into four segments. The end of each segment is equipped with fine hair-like structures that form the final brush. In both sexes, the ninth primary feather is notched. Sometimes, the eighth or tenth or all three mentioned primaries are notched too. Both subspecies ''oneho'' and ''obscura'' are very similar in appearance to the nominate species described above. Male subsp. ''oneho'' has more blue sheen on its head, and feathers on some upper parts (nape, forehead, crown, ear coverts, chin, and throat) have a violet sheen. Female subspecies ''oneho'' differs from the nominate female by having a greener sheen on the head and neck, and a green-blue sheen on the crown, forehead, nape, and ear coverts. Compared to mainland birds, males of the subsp. ''oneho'' are relatively larger in proportion to females. The male subsp. ''obscura'' has slightly darker plumage than the nominate male, and its sheen on the upper body parts is violet. The female subsp. ''obscura'' has slightly paler underparts compared to the nominate female. A juvenile male is similar to an adult male but is duller with very little to no iridescence. A juvenile female is even paler and greyer than a juvenile male. Unlike adults, juvenile bellbirds don't have their primaries notched. Nestlings are initially born without feathers but quickly develop a covering of grey down.


Distribution and habitat

The most widespread subspecies by far is ''melanura'', which can be found throughout
North North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating Direction (geometry), direction or geography. Etymology T ...
,
South South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both west and east. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþa ...
, Stewart and
Auckland Islands The Auckland Islands ( Māori: ''Motu Maha'' "Many islands" or ''Maungahuka'' "Snowy mountains") are an archipelago of New Zealand, lying south of the South Island. The main Auckland Island, occupying , is surrounded by smaller Adams Island ...
. It is also present on many satellites like
Tiritiri Matangi Island Tiritiri Matangi Island is located in the Hauraki Gulf of New Zealand, east of the Whangaparāoa Peninsula in the North Island and north east of Auckland. The island is an open nature reserve managed by the Supporters of Tiritiri Matangi Incor ...
, Mokohinau,
Little Barrier Little is a synonym for small size and may refer to: Arts and entertainment * ''Little'' (album), 1990 debut album of Vic Chesnutt * ''Little'' (film), 2019 American comedy film *The Littles, a series of children's novels by American author John P ...
,
Cuvier Jean Léopold Nicolas Frédéric, baron Cuvier (23 August 1769 – 13 May 1832), known as Georges Cuvier (; ), was a French natural history, naturalist and zoology, zoologist, sometimes referred to as the "founding father of paleontology". Cuv ...
, Mercury,
Hen and Chickens Hen commonly refers to a female animal: a female chicken, other gallinaceous bird, any type of bird in general, or a lobster. It is also a slang term for a woman. Hen, HEN or Hens may also refer to: Places Norway *Hen, Buskerud, a village in R ...
,
Aldermen An alderman is a member of a municipal assembly or council in many jurisdictions founded upon English law with similar officials existing in the Netherlands (wethouder) and Belgium (schepen). The term may be titular, denoting a high-ranking membe ...
and Mayor Islands.
Vagrants Vagrancy is the condition of wandering homelessness without regular employment or income. Vagrants usually live in poverty and support themselves by travelling while engaging in begging, scavenging, or petty theft. In Western countries, ...
have appeared as far south as Campbell Island and there is a historical record from the
Snares Islands The Snares Islands (; officially Snares Islands / Tini Heke), known colloquially as The Snares, is a group of uninhabited islands lying about south of New Zealand's South Island and to the south-southwest of Stewart Island / Rakiura. The Snar ...
dating back to 1888. Subsp. ''oneho'' only occurs on
Three Kings Islands 3 (three) is a number, numeral (linguistics), numeral and numerical digit, digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime preceding a square number. It has religious and cul ...
, and subsp. ''obscura'' only nests on
Poor Knights Islands The Poor Knights Islands (Māori: ''Tawhiti Rahi)'' are a group of islands off the east coast of the Northland Region of the North Island of New Zealand. They lie to the northeast of Whangārei, and offshore halfway between Bream Head ...
, but occasionally visits the nearby mainland of eastern Northland. Bellbirds are almost absent north of
Waikato The Waikato () is a region of the upper North Island of New Zealand. It covers the Waikato District, Waipā District, Matamata-Piako District, South Waikato District and Hamilton City, as well as Hauraki, Coromandel Peninsula, the nort ...
. Northland can get occasional winter female visitors from nearby offshore islands, and small pocket populations exist in some places north of
Auckland Auckland ( ; ) is a large metropolitan city in the North Island of New Zealand. It has an urban population of about It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and ...
like
Tāwharanui Peninsula Tāwharanui Peninsula is a finger of land projecting into the Hauraki Gulf from the east coast of the much larger North Auckland Peninsula of New Zealand. It separates Ōmaha Bay to the north from Kawau Bay and Kawau Island to the south. The ne ...
and
Shakespear Regional Park Shakespear Regional Park () is a nature park in the Auckland Region of New Zealand. It is located at the tip of the Whangaparāoa Peninsula, and is named after the Shakespear family who first came on to the land when Sir Robert Hamilton purchase ...
. It is also scarce in the
Canterbury Plains The Canterbury Plains () are an area in New Zealand centred in the Mid Canterbury, to the south of the city of Christchurch in the Canterbury region. Their northern extremes are at the foot of the Hundalee Hills in the Hurunui District, and ...
and
Central Otago Central Otago is an area located in the inland part of the Otago region in the South Island of New Zealand. The motto for the area is "A World of Difference". The area is dominated by mountain ranges and the upper reaches of the Clutha River ...
. In their native forest habitat, bellbirds can be abundant and are more widely distributed than tūī. The bellbird's
habitat In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...
encompasses both native and exotic forests and
scrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally o ...
s, and it is frequently found in urban areas such as
park A park is an area of natural, semi-natural or planted space set aside for human enjoyment and recreation or for the protection of wildlife or natural habitats. Urban parks are urban green space, green spaces set aside for recreation inside t ...
s and gardens, especially if there is a nearby patch of native bush. It is found from lowland areas at sea level up to about 1200 metres, including
subalpine Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ...
regions above the
tree line The tree line is the edge of a habitat at which trees are capable of growing and beyond which they are not. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually low ...
. It particularly thrives in densely vegetated areas with a mix of
podocarp Podocarpaceae is a large family of mainly southern hemisphere conifers, known in English as podocarps, comprising about 156 species of evergreen trees and shrubs.James E. Eckenwalder. 2009. ''Conifers of the World''. Portland, Oregon: Timber Pres ...
-hardwood lowland forests with diverse vegetation. It is typically found in forests dominated by
northern rātā Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ra ...
(''Metrosideros robusta''), tawheowheo (''Quintinia serrata''),
kāmahi ''Pterophylla racemosa'', commonly known as the kāmahi, is an evergreen tree endemic to New Zealand. It is a member of the Cunoniaceae family of plants, and it is often referred to by its former botanical name ''Weinmannia racemosa.'' Most me ...
(''Weinmannia racemosa''), as well as mixed southern beech forests (''
Nothofagus ''Nothofagus'', also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere, found across southern South America (Chile, Argentina) and east and southeast Australia, New Zealand, New Guin ...
'' spp.) or coastal broadleaf forests, such as
pōhutukawa Pōhutukawa (''Metrosideros excelsa''), also known as the New Zealand Christmas tree, or iron tree, is a coastal evergreen tree in the Myrtus, myrtle family, Myrtaceae, that produces a brilliant display of red (or occasionally orange, yellow o ...
(''Metrosideros excelsa''). Additionally, it can be found in exotic forests such as
eucalyptus ''Eucalyptus'' () is a genus of more than 700 species of flowering plants in the family Myrtaceae. Most species of ''Eucalyptus'' are trees, often Mallee (habit), mallees, and a few are shrubs. Along with several other genera in the tribe Eucalyp ...
,
acacia ''Acacia'', commonly known as wattles or acacias, is a genus of about of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Austral ...
, and even
pine A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. ''World Flora Online'' accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as cu ...
and
willow Willows, also called sallows and osiers, of the genus ''Salix'', comprise around 350 species (plus numerous hybrids) of typically deciduous trees and shrubs, found primarily on moist soils in cold and temperate regions. Most species are known ...
forests. Occasionally, it ventures into farmland, including
orchard An orchard is an intentional plantation of trees or shrubs that is maintained for food production. Orchards comprise fruit tree, fruit- or nut (fruit), nut-producing trees that are generally grown for commercial production. Orchards are also so ...
s. On predator-free islands, bellbirds typically reach higher
population densities Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopul ...
than on the mainland. On the Poor Knights Islands, subsp. ''oneho'' reaches densities of 71 birds per hectare. However, this figure was derived from a study area of only 0.45 hectares, and therefore may not accurately reflect the entire 66-hectare island. On the predator-free Great Island in the Three Kings Islands, the density of bellbirds was estimated to be 16 birds per hectare and on Tiritiri Matangi Island 2.13 pairs per hectare.


Behaviour and ecology

During the breeding season, bellbirds mostly remain within their
territories A territory is an area of land, sea, or space, belonging or connected to a particular country, person, or animal. In international politics, a territory is usually a geographic area which has not been granted the powers of self-government, ...
but may leave to feed at nearby food sources. Outside of this period, they are solitary and nomadic. The bellbird's flight is noisy and direct. While some populations are residential, some may
migrate Migration, migratory, or migrate may refer to: Human migration * Human migration, physical movement by humans from one region to another ** International migration, when peoples cross state boundaries and stay in the host state for some minimum le ...
locally. Seasonal migrations were recorded between bush in the winter and summer coastal forest, or between river beds and urban areas. They are also capable of moving between offshore islands and the mainland. Bellbirds from Tawharanui are believed to have flown from
Little Barrier Island Little Barrier Island, or Hauturu in Māori language, Māori (the official Māori title is ''Te Hauturu-o-Toi''), lies off the northeastern coast of New Zealand's North Island. Located to the north of Auckland, the island is separated from the ...
, which is 23 km away across the open sea. Main natural
predators Predation is a biological interaction in which one organism, the predator, kills and eats another organism, its prey. It is one of a family of common feeding behaviours that includes parasitism and micropredation (which usually do not kill ...
of bellbirds are the
swamp harrier The swamp harrier (''Circus approximans''), also known as the Australasian marsh harrier or Australasian harrier, is a large, slim bird of prey widely distributed across Australasia. In New Zealand, it is also known by the Māori name . It arriv ...
(''Circus approximans'') and the New Zealand falcon (''Falco novaeseelandiae''). In the Auckland Islands, bellbirds were the most commonly eaten prey of falcons. Bellbirds can also be attacked by
Australian magpie The Australian magpie (''Gymnorhina tibicen'') is a black and white passerine bird native to Australia and southern New Guinea, and introduced to New Zealand, and the Fijian island of Taveuni. Although once considered to be three separate ...
(''Gymnorhina tibicen'').


Breeding

Bellbirds are
monogamous Monogamy ( ) is a relationship of two individuals in which they form a mutual and exclusive intimate partnership. Having only one partner at any one time, whether for life or serial monogamy, contrasts with various forms of non-monogamy (e.g. ...
and establish long-term bonds. They keep the same territory each year. On Poor Knight Islands, adult males were defending their territories year-round. During the breeding season, a female shared a male's territory and helped defend it by chasing away other bellbirds. After breeding, she became non-territorial and, especially in autumn, joined flocks of juveniles and immature birds. During breeding, bellbirds vigorously defend their territories, with females willing to physically attack intruders. Sometimes, females attempt to distract approaching predators by falling to the ground and flapping away through dense undergrowth. Courtship occurs in August and September, during which a pair of bellbirds can be seen chasing each other or singing together. Male courtship behaviour includes hovering or slowly ascending with his body in a vertical position, producing a whirring sound with his wings. Courtship feeding sometimes occurs, during which the male feeds the female. Courtship behaviour intensifies as they get closer to nest building. The female constructs a cup-shaped
nest A nest is a structure built for certain animals to hold Egg (biology), eggs or young. Although nests are most closely associated with birds, members of all classes of vertebrates and some invertebrates construct nests. They may be composed of ...
from twigs, moss and fibres, lining it with fine grasses, wool and feathers. While the nest is usually situated in a tree, on some islands it may be located in a rock or trunk cavity. On a tree, it could be placed from ground level to about 15 m high. On Tiritiri Matangi, most nests were placed under the hanging
frond A frond is a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds and some botanists restrict the term to this group. Other botanists allow the term frond to also apply to the lar ...
s of
tree fern Tree ferns are arborescent (tree-like) ferns that grow with a trunk (botany), trunk elevating the fronds above ground level, making them trees. Many extant tree ferns are members of the order Cyatheales, to which belong the families Cyatheaceae ( ...
s. Nest building takes about 3–7 days. Mainland bellbirds generally lay eggs between September and January, typically raising two
broods Broods are a musical duo from Nelson, New Zealand, composed of Georgia Josiena Nott on lead vocals, with older brother and multi-instrumentalist Caleb Allan Joseph Nott on production and backing vocals. They released the single "Bridges (Broo ...
. In contrast, bellbirds from the Poor Knights Islands lay eggs from late September to late November and usually have only one brood. Females lay 3–4 eggs at daily intervals. The eggs measure approximately 23×16 mm and are pinkish with red-brown spots. Only females incubate the eggs, while males defend the territory. Incubation lasts approximately 13–15 days, starting with the last egg laid. Occasionally, the male may feed the incubating female, but she also leaves the nest to forage independently. Usually both parents feed the chicks, though sometimes only females feed the chicks or do the majority of feeding. The female broods the chicks for about 5–6 days, spending all night and about half of the day doing so; after this period, she only broods at night. Chicks fledge after around 19 days. They stay close to the nest in dense vegetation, where their parents continue to feed them. After about 3 days, the young birds begin to forage on their own, becoming fully independent in approximately another week or two. On Tiritiri Matangi, nest success was 44 %, primarily hindered by predation and nest abandonment, contributing to the relatively low reproductive success. Bellbirds can begin breeding in their first year and can live at least eight years.


Diet

Bellbirds consume
nectar Nectar is a viscous, sugar-rich liquid produced by Plant, plants in glands called nectaries, either within the flowers with which it attracts pollination, pollinating animals, or by extrafloral nectaries, which provide a nutrient source to an ...
,
fruit In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propaga ...
, honeydew, and
insect Insects (from Latin ') are Hexapoda, hexapod invertebrates of the class (biology), class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (Insect morphology#Head, head, ...
s. For most of the year, they feed on nectar from a large variety of native and, more recently, exotic plant species. However, in autumn, when nectar and honeydew are scarce, they eat more fruit. Females tend to consume more insects than males, likely because the more aggressive males exclude them from feeding territories. Fruit is typically consumed whole, with diameters mostly below 6 mm and occasionally up to 10 mm. Nectar is taken from a variety of local plants, such as New Zealand fuchsia (''Fuchsia excorticata''),
kōwhai Kōwhai ( or ) are small woody legume trees within the genus '' Sophora'', in the family Fabaceae, that are native to New Zealand. There are eight species, with '' Sophora microphylla'' and '' Sophora tetraptera'' being large trees. Their natu ...
(''Sophora'' sp.), five-finger (''Neopanax arboreus''),
flax Flax, also known as common flax or linseed, is a flowering plant, ''Linum usitatissimum'', in the family Linaceae. It is cultivated as a food and fiber crop in regions of the world with temperate climates. In 2022, France produced 75% of t ...
(''Phormium sp.''),
southern rātā ''Metrosideros umbellata'', the southern rātā, is a tree endemic to New Zealand. It grows up to or more tall with a trunk up to or more in diameter. It produces masses of red flowers in summer. Unlike its relative, northern rātā, this spe ...
(''Metrosideros umbellata''), mahoe (''Melicytus ramiflorus''), horopito (''Pseudowintera'' sp.), kanuka (''Kunzea ericoides''),
pate Pate, pâte au lait, or paté may refer to: Foods Pâté 'pastry' * Pâté, various French meat forcemeat pies or loaves * Pâté haïtien or Haitian patty, a meat-filled puff pastry dish * ''Pate'' or ''paté'' (anglicized spellings), the Vir ...
(''Schefflera digitata''), red matipo (''Myrsine australis''), supplejack (''Ripogonum scandens''), broadleaf (''Griselinia littoralis''),
cabbage tree Cabbage tree is a common name for several plant species: * '' Andira inermis'', native to Central and South America * Various members of the genus ''Cordyline'' native to New Zealand. **''Cordyline australis'' (Cabbage tree) **''Cordyline banksii'' ...
(''Cordyline australis''), ribbonwood (''Plagianthus regius'') and many others. Similar to nectar, fruit can be obtained from numerous species of trees and shrubs, such as karamū (''
Coprosma lucida ''Coprosma lucida'', commonly known as shining karamū, karamū, kāramuramu, shiny karamū, or kakaramu, is a shrub or tree endemic to New Zealand. Species Description ''Coprosma lucida'' is a plant that is typically found in the form of a ...
, C. robusta''), makomako (''Aristotelia serrata''),
rimu ''Dacrydium cupressinum'', commonly known as rimu, is a species of tree in the family Podocarpaceae. It is a dioecious evergreen conifer, reaching heights of up to , and can have a stout trunk (botany), trunk up to in diameter. It is endemis ...
(''Dacrydium cupressinum''),
kahikatea ''Dacrycarpus dacrydioides'', commonly known as kahikatea (from Māori language, Māori) and white pine, is a Pinophyta, coniferous tree endemism, endemic to New Zealand. A Podocarpaceae, podocarp, it is New Zealand's tallest tree, gaining hei ...
(''Dacrycarpus dacrydioides''), flax, red matipo or rōhutu (''Neomyrtus pedunculata''). Favourite insects taken include
flies Flies are insects of the Order (biology), order Diptera, the name being derived from the Ancient Greek, Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwin ...
(Diptera),
true bugs Hemiptera (; ) is an order (biology), order of insects, commonly called true bugs, comprising more than 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, Cimex, bed bugs, and shield bugs. They ...
(Hemiptera), and true cicadas (Cicadidae). Young birds primarily feed on insects such as
caterpillar Caterpillars ( ) are the larval stage of members of the order Lepidoptera (the insect order comprising butterflies and moths). As with most common names, the application of the word is arbitrary, since the larvae of sawflies (suborder ...
s,
moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...
s,
larva A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...
e, and
spider Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and ran ...
s. Bellbirds can gather food from all levels of the forest. They may also forage in flocks with other bird species, such as the whitehead (''Mohoua albicilla''). They obtain insects by gleaning them from all parts of a tree or by hawking. During the breeding season, they are territorial and forage alone. After breeding, they are typically solitary, even though multiple individuals may forage in the same tree simultaneously; each defends its own foraging territory within the tree. Bellbirds play an important part in
pollinating Pollination is the transfer of pollen from an anther of a plant to the stigma of a plant, later enabling fertilisation and the production of seeds. Pollinating agents can be animals such as insects, for example bees, beetles or butterflies; birds ...
numerous native plants such as
mistletoe Mistletoe is the common name for obligate parasite, obligate parasitic plant, hemiparasitic plants in the Order (biology), order Santalales. They are attached to their host tree or shrub by a structure called the haustorium, through which they ...
(e.g. ''
Peraxilla tetrapetala ''Peraxilla tetrapetala'', commonly known as red mistletoe, is a parasitic plant in the family Loranthaceae, endemic to New Zealand and found on both the North and South Islands. The Māori names for the plant are pikirangi, pirirangi and roero ...
''), fuchsia, and kōwhai.Bellbird/korimako facts – Department of Conservation
Retrieved: 13 February 2011
They are also important seed dispersers.


Song and sound

The New Zealand bellbirds have a distinctive vocal repertoire. Its pronounced singing voice was noted already by
James Cook Captain (Royal Navy), Captain James Cook (7 November 1728 – 14 February 1779) was a British Royal Navy officer, explorer, and cartographer famous for his three voyages of exploration to the Pacific and Southern Oceans, conducted between 176 ...
who thought that "it seemed to be like small bells most exquisitely tuned". Bellbird song varies regionally and is somewhat similar to the song of the tūī but it doesn't include harsh grunts, clicks and wheezes. Bellbirds utilise their song throughout the year to defend breeding territories and food resources. Bellbirds sing throughout the day but are especially active in the early morning and evening. The male's song features three distinct sounds reminiscent of chiming bells. The dawn song typically includes 2 to 6 pure, bell-like notes, sometimes interspersed with quieter tones, and can last between 10 and 40 minutes, particularly at dawn and during the breeding season. While singing, the male stretches his neck and fluffs his feathers. Singing males often join together in
unison Unison (stylised as UNISON) is a Great Britain, British trade union. Along with Unite the Union, Unite, Unison is one of the two largest trade unions in the United Kingdom, with over 1.2 million members who work predominantly in public servic ...
. Their full song includes a variety of sounds, such as clonks, chonks, quiet notes, and harsh noises. The female sings with quite pure frequency, producing songs of 7 to 15 notes. She can engage in countersinging with other females or perform duets with her mate. Song types differ significantly between the sexes, with males singing several structurally distinct types of songs, while females produce overlapping types in structure. Joint singing at dawn, as noted by Sir Joseph Banks in Queen Charlotte Sound during James Cook's first voyage to New Zealand, occurs primarily at dawn and dusk in areas with a high density of bellbirds and few other bird species. This phenomenon is only heard when many bellbirds are present at the same time. Their alarm call is a rapidly repeated set of harsh
staccato Staccato (; Italian for "detached") is a form of Articulation (music), musical articulation. In modern notation, it signifies a note of shortened duration, separated from the note that may follow by silence. It has been described by theorists and ...
"yeng". The modification of the ninth, sometimes also eight or tenth primaries allow bellbirds to make a specific whirring sound during flight. The wing sound frequencies can vary, usually staying below 1000
hertz The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or Cycle per second, cycle) per second. The hertz is an SI derived unit whose formal expression in ter ...
. Bellbirds can control the production of these sounds and tūī, a major food competitor, can also make them. The wing whirling sounds are connected to the expression of aggression on feeding territories, territory defence but also courtship displays.


Conservation


Historical decline

Bellbirds were once widespread across New Zealand in high numbers. At the time of European arrival, they were one of the most common birds. Bellbird populations have declined significantly due to the destruction of native forests (initiated by Māori and perpetuated by Europeans) and the introduction of invasive predators such as
cat The cat (''Felis catus''), also referred to as the domestic cat or house cat, is a small domesticated carnivorous mammal. It is the only domesticated species of the family Felidae. Advances in archaeology and genetics have shown that the ...
s (''Felis catus''),
mustelids The Mustelidae (; from Latin , weasel) are a diverse family of carnivoran mammals, including weasels, badgers, otters, polecats, martens, grisons, and wolverines. Otherwise known as mustelids (), they form the largest family in the suborder Can ...
including
ferret The ferret (''Mustela furo'') is a small, domesticated species belonging to the family Mustelidae. The ferret is most likely a domesticated form of the wild European polecat (''Mustela putorius''), as evidenced by the ferret's ability to inter ...
(''Mustela furo''),
stoat The stoat (''Mustela erminea''), also known as the Eurasian ermine or ermine, is a species of mustelid native to Eurasia and the northern regions of North America. Because of its wide circumpolar distribution, it is listed as Least Concern on th ...
(''M. erminea''),
weasel Weasels are mammals of the genus ''Mustela'' of the family Mustelidae. The genus ''Mustela'' includes the least weasels, polecats, stoats, ferrets, and European mink. Members of this genus are small, active predators, with long and slend ...
(''M. nivalis''), and
rodent Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal specie ...
s such as
Norwegian rat The brown rat (''Rattus norvegicus''), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent wi ...
(''Rattus norvegicus'') and
ship rat The black rat (''Rattus rattus''), also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus '' Rattus'', in the subfamily Murinae. It likely originated in the Indian subcontinent, but is ...
(''Rattus rattus''). Between the 1860s and about 1900, bellbird numbers declined very dramatically, prompting many ornithologists to search for reasons beyond deforestation and introduced mammals.
Walter Buller Sir Walter Lawry Buller (9 October 1838 – 19 July 1906) was a New Zealand lawyer and naturalist who was a dominant figure in New Zealand ornithology. His book, ''A History of the Birds of New Zealand'', first published in 1873, was published ...
, the prominent New Zealand ornithologist of the 19th century, in his landmark book ''A History of the Birds of New Zealand'' (1873), quoted
Hokianga The Hokianga is an area surrounding the Hokianga Harbour, also known as the Hokianga River, a long Estuary, estuarine drowned valley on the west coast in the north of the North Island of New Zealand. The original name, still used by local Mā ...
resident
Frederick Maning Frederick Edward Maning (5 July 1812 – 25 July 1883) was an early settler in New Zealand, a writer, and a judge of the Native Land Court. He published two books under the pseudonym of "a Pakeha Maori." Early life Maning was born in Johnvil ...
, who said: The decline started in the north of the country and moved south. By 1870, bellbirds had vanished from Northland and between 1868 and 1878 they disappeared from
Great Barrier Island Great Barrier Island () lies in the outer Hauraki Gulf, New Zealand, north-east of central Auckland. With an area of it is the sixth-largest List of islands of New Zealand, island of New Zealand. Its highest point, Mount Hobson, Great Barrier ...
. In the South Island, bellbird numbers in Canterbury did not reach their lowest point until 1900. While bellbirds declined across New Zealand's main islands, the impact was most pronounced in the North Island. After 1910, bellbird numbers in Canterbury started to surge. A comparable recovery, albeit earlier, occurred in many North Island areas apart from northern areas like Northland. J. G. Myers suggested that the decline could have been caused by a disease such as
avian malaria Avian malaria is a parasitic disease of birds, caused by parasite species belonging to the genera ''Plasmodium'' and '' Hemoproteus'' (phylum Apicomplexa, class Haemosporidia, family Plasmoiidae). The disease is transmitted by a dipteran vector in ...
, which was introduced from Europe together with some non-native bird species. This hypothesis is supported by the fact that offshore island populations were not as affected (the Great Barrier, with its highly modified habitat, represents an exception), and bellbirds have survived in some mainland habitats with the same pressure of introduced mammals until the present day. However, challenging the "disease hypothesis" is the observation that the probable disease organisms and their vectors had been present in New Zealand since the 1820s, making it unlikely that an avian disease would cause the sudden bellbird's decline a few decades later. Moreover, further evidence supporting a sudden spread of disease is lacking, and widespread sudden decrease in other
taxa In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...
suggest a wider ecological problem. The main cause of this sharp decline remains unclear and could differ in certain areas across New Zealand.
Andreas Reischek Andreas Reischek (15 September 1845 – 3 April 1902) was an Austrian taxidermy, taxidermist, natural history, naturalist, ornithology, ornithologist and grave robber notable for his extensive natural history collecting expeditions throughout New ...
considered the decline to be caused by "cats, rats, bees and bush-fires." Buller mentioned that some Māori from Northland believed that the decline was caused by an introduced
honey bee A honey bee (also spelled honeybee) is a eusocial flying insect within the genus ''Apis'' of the bee clade, all native to mainland Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the ...
that drove away the bellbirds from their flowers. Buller originally believed that the decline was caused by introduced
rat Rats are various medium-sized, long-tailed rodents. Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus ''Rattus''. Other rat genera include '' Neotoma'' (pack rats), '' Bandicota'' (bandicoo ...
s. However, in 1894 he cast doubts on this hypothesis after visiting Motutaiko Island in
Lake Taupō Lake Taupō (also spelled Taupo; or ) is a large crater lake in New Zealand's North Island, located in the caldera of Taupō Volcano. The lake is the namesake of the town of Taupō, which sits on a bay in the lake's northeastern shore. With ...
, infamous for its rat infestation, yet discovered a thriving bellbird population there. Later authors suggested that rats still may have caused the decline of the bellbirds and that the rats Buller saw on Motutaiko Island were in fact either Norwegian rats or
Polynesian rat The Polynesian rat, Pacific rat or little rat (''Rattus exulans''), or , is the third most widespread species of rat in the world behind the brown rat and black rat. Contrary to its vernacular name, the Polynesian rat originated in Southeast Asi ...
s, which do not climb trees frequently, and the sharp decline was caused by tree-climbing ship rats. Ship rats were introduced in northern New Zealand in the mid-19th century, and their rapid spread south indeed coincided with the decline of bellbirds (and some other
passerine A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped') which includes more than half of all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their ...
s as well, like
South Island saddleback The South Island saddleback or tīeke (''Philesturnus carunculatus'') is a forest-dwelling passerine bird in the New Zealand wattlebird family which is endemic to the South Island of New Zealand. Both the North Island saddleback and this speci ...
(''Philesturnus carunculatus''),
parakeets A parakeet is any one of many small- to medium-sized species of parrot, in multiple genera, that generally has long tail feathers. Etymology and naming The name ''parakeet'' is derived from the French word ''perroquet'', which is reflect ...
(''Cyanoramphus'' spp.) and
bush wren The bushwren (''Xenicus longipes''), also known as the in the Māori language, is an Extinction, extinct species of diminutive and nearly flightless bird that was endemic to New Zealand. It had three subspecies on each of the major islands of N ...
(''Xenicus longipes'')). Ship rats are believed to be the primary reason for the extinction of the Chatham Island bellbird, which is another reason to suspect that they also played a significant role in the population decline of New Zealand bellbirds. Some other research also points to ship rats or introduced mammalian predators in general.


Reintroductions

There have been many attempts to reintroduce bellbirds to areas of their former abundance. The first reintroduction occurred in 1932 when Auckland Zoological Society released 15 bellbirds from Little Barrier Island in the
Waitākere Ranges The Waitākere Ranges is a mountain range in New Zealand. Located in West Auckland, New Zealand, West Auckland between metropolitan Auckland and the Tasman Sea, the ranges and its foothills and coasts comprise some of public and private land. ...
. The bellbirds initially dispersed a few kilometres into the valley but gradually disappeared with no reports after 1946. During the second mainland release in March 1983 at Shakespear Regional Park, 22 birds were set free. Only one nest was reported, and soon after, bellbirds disappeared, with some observed returning to their home island of Tiritiri Matangi. Similar outcomes were seen in a few other release attempts, where bellbirds vanished shortly after being released. As of 2012, a few more reintroductions were in progress. The cause of failures of reintroductions of bellbirds is often difficult to determine, but predation by mammalian predators, mainly ship rats, is thought to be a critical factor. There is a potential possibility to translocate bellbirds to
Chatham Islands The Chatham Islands ( ; Moriori language, Moriori: , 'Misty Sun'; ) are an archipelago in the Pacific Ocean about east of New Zealand's South Island, administered as part of New Zealand, and consisting of about 10 islands within an approxima ...
in order to replace the
ecological niche In ecology, a niche is the match of a species to a specific environmental condition. Three variants of ecological niche are described by It describes how an organism or population responds to the distribution of Resource (biology), resources an ...
of their extinct relative, the Chatham bellbird.


Threats and population assessment

Despite the bellbirds' widespread presence on the New Zealand mainland, their populations remain low due to the impact of mammalian predators like rats and stoats. Invasive mammalian predators are the main threats to bellbirds. In beech forest the main predator is the stoat, while in non-beech forest areas the main predator is likely the ship rat. In areas of the mainland where bellbirds are found, their numbers are typically lower compared to predator-free islands. Although possums have not been shown to directly kill bellbirds, they compete with them for food resources. Introduced social
wasp A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant; this excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder ...
s like German wasps (''Vespula germanica''), and particularly common wasps (''V. vulgaris''), have been found to significantly diminish the availability of honeydew drops, which are an important food source for bellbirds. The
International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the stat ...
(IUCN) classifies bellbirds as a species of
least concern A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wil ...
. New Zealand
Department of Conservation Department may refer to: * Departmentalization, division of a larger organization into parts with specific responsibility Government and military *Department (administrative division), a geographical and administrative division within a country, ...
considers subsp. ''melanura'' as "not-threatened", while island subspecies ''obscura'' and ''oneho'' are "naturally uncommon". According to IUCN and a 2010 study, the overall bellbird population is suspected to be in decline as a result of predation by introduced mammals and ongoing
habitat destruction Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ...
. The decline is most prominent in lowland areas under 1000 metres in elevation. A 2022 study of New Zealand garden birds concluded that bellbird numbers are stable or locally increasing. Known increases of bellbirds in some areas like Christchurch
Port Hills The Port Hills () are a range of hills in Canterbury Region of New Zealand, so named because they lie between the city of Christchurch and its port at Lyttelton, New Zealand, Lyttelton. They are an eroded remnant of the Banks Peninsula Volcano ...
, Lake Rotoiti, Craigieburns,
Kapiti Island Kapiti Island (), sometimes written as Kāpiti Island, is an island nature reserve located off the west coast of the lower North Island of New Zealand and within the Kāpiti Coast District. Parts of the island were previously farmed, but it is ...
or
Tiritiri Matangi Tiritiri Matangi Island is located in the Hauraki Gulf of New Zealand, east of the Whangaparāoa Peninsula in the North Island and north east of Auckland. The island is an open nature reserve managed by the Supporters of Tiritiri Matangi Inco ...
are related to the control of invasive mammalian species.


Relationship with humans


In Māori culture

The bellbird is regarded as ''
taonga ''Taonga'' or ''taoka'' (in South Island Māori) is a Māori-language word that refers to a treasured possession in Māori culture. It lacks a direct translation into English, making its use in the Treaty of Waitangi significant. The current ...
'' by the
Māori Māori or Maori can refer to: Relating to the Māori people * Māori people of New Zealand, or members of that group * Māori language, the language of the Māori people of New Zealand * Māori culture * Cook Islanders, the Māori people of the Co ...
, who traditionally valued it for its meat and singing abilities. There are many (
proverb A proverb (from ) or an adage is a simple, traditional saying that expresses a perceived truth based on common sense or experience. Proverbs are often metaphorical and are an example of formulaic speech, formulaic language. A proverbial phrase ...
s) that refer to the bellbird's singing. Early Māori, who deeply appreciated songs and oratories, compared skilled performers to bellbirds by saying "" (''Just like a korimako singing at dawn''). In addition to proverbs highlighting the bellbird's singing abilities, some compare the restless nature of female bellbirds, who are constantly on the move, to that of irresponsible or even promiscuous women. An example is "" (''Hey! The bellbird is a restless bird.'') which could describe an irresponsible woman. A well-known Māori song goes as follows: In the song above, the korimako (bellbird) represents humanity, while the
flax Flax, also known as common flax or linseed, is a flowering plant, ''Linum usitatissimum'', in the family Linaceae. It is cultivated as a food and fiber crop in regions of the world with temperate climates. In 2022, France produced 75% of t ...
symbolises the vitality of the land and its people. The proverb signifies that individuals will thrive if they receive the right support. New Zealand missionary Richard Taylor wrote in 1855 that in the Taupō region during a child's naming ceremony, a bellbird was cooked in a small, specially dedicated oven. Shortly after cooking, this "sweetest singing bird of New Zealand" was ritually eaten by a chief priest (') to ensure that "the child might have a sweet voice, and become an admired orator". Such customs varied across the country. In some birth ceremonies, the bellbird was released alive rather than being cooked and eaten. Occasionally, a young chief was given bellbird meat as he grew to adulthood, with the hope that he would become a successful orator. A well-spoken orator was often simply called a ' (bellbird). Bellbirds often eat the fruit of a small forest tree, ''
Pennantia corymbosa ''Pennantia corymbosa'', commonly known as kaikomako (from the Māori ), is a small dioecious tree endemic to New Zealand. Small, creamy flowers are produced between November and February, followed by a shiny black fruit in autumn. They are a ...
'', hence its Māori name ' ("food of the bellbird"). The Māori hunted bellbirds for their meat using various methods. They would employ
spear A spear is a polearm consisting of a shaft, usually of wood, with a pointed head. The head may be simply the sharpened end of the shaft itself, as is the case with Fire hardening, fire hardened spears, or it may be made of a more durable materia ...
s or long, thin rods to strike the birds. Ground
snare trap Animal trapping, or simply trapping or ginning, is the use of a device to remotely catch and often kill an animal. Animals may be trapped for a variety of purposes, including for meat, fur/feathers, sport hunting, pest control, and wildlife ma ...
s, known as ', were baited with honey flowers such as those from the
pōhutukawa Pōhutukawa (''Metrosideros excelsa''), also known as the New Zealand Christmas tree, or iron tree, is a coastal evergreen tree in the Myrtus, myrtle family, Myrtaceae, that produces a brilliant display of red (or occasionally orange, yellow o ...
tree. During direct hunting, a fowler would hide in a shelter made from vegetation such as fern
frond A frond is a large, divided leaf. In both common usage and botanical nomenclature, the leaves of ferns are referred to as fronds and some botanists restrict the term to this group. Other botanists allow the term frond to also apply to the lar ...
s or nīkau palm leaves. The fowler would then set up a low-lying horizontal perch snare above the shelter and attract bellbirds by imitating their calls, using a leaf held between the lips. Once a bird landed on the perch, the fowler would strike it. A method of catching live bellbirds involved using a trap called a ', which was a long, thin rod ending with a short horizontal section and a loop at the end of a long string. The trap's design allowed the trapper to close the loop when a bird landed on the end of the ', catching its feet. Preparing a bellbird meal involved cooking the entire birds in earth ovens (
hāngī Hāngī () is a traditional New Zealand Māori method of cooking food using heated rocks buried in a pit oven, called an ''umu''. It is still used for large groups on special occasions, as it allows large quantities of food to be cooked witho ...
). The bellbirds were plucked, but their internal organs were left intact to infuse a special flavour. Another cooking method involved wrapping the bellbirds in large puka or
rangiora Rangiora is the largest town and seat of the Waimakariri District, in Canterbury Region, Canterbury, New Zealand. It is north of Christchurch, and is part of the Christchurch metropolitan area. With an estimated population of Rangiora is the ...
leaves and placing them in a shallow hole, about 15 cm deep. They were then covered with ashes and earth until cooked, ensuring that the juices, fat, and aromas were sealed in.


In culture

The call of the ''Anthornis melanura'' is used by
Radio New Zealand Radio New Zealand (), commonly known as RNZ or Radio NZ, is a New Zealand public service broadcaster and Crown entity. Established under the Radio New Zealand Act 1995, it operates news and current affairs station, RNZ National, and a classi ...
as an
interval signal An interval signal, or tuning signal, is a characteristic sound or musical phrase used in international broadcasting, numbers stations, and by some domestic broadcasters, played before commencement or during breaks in transmission, but most comm ...
. The movie '' Bellbird'' was named after the New Zealand bellbird, as are places like Lake Bellbird on the West Coast and the historic building site The Sign of the Bellbird in the
Port Hills The Port Hills () are a range of hills in Canterbury Region of New Zealand, so named because they lie between the city of Christchurch and its port at Lyttelton, New Zealand, Lyttelton. They are an eroded remnant of the Banks Peninsula Volcano ...
near Christchurch.


References


Works cited

* * * * * * * *


External links


Bellbird in New Zealand Birds Online
{{Authority control Meliphagidae Endemic birds of New Zealand Birds described in 1786 Birds of the Auckland Islands Taxa named by Anders Sparrman