Emerald Dove
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The emerald dove or common emerald dove (''Chalcophaps indica''), also called Asian emerald dove and grey-capped emerald dove, is a widespread resident breeding
pigeon Columbidae is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with small heads, relatively short necks and slender bills that in some species feature fleshy ceres. ...
native to the tropical and subtropical parts of the
Indian Subcontinent The Indian subcontinent is a physiographic region of Asia below the Himalayas which projects into the Indian Ocean between the Bay of Bengal to the east and the Arabian Sea to the west. It is now divided between Bangladesh, India, and Pakista ...
and
Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
. The dove is also known by the names of green dove and green-winged pigeon. The common emerald dove is the state bird of the Indian state of
Tamil Nadu Tamil Nadu (; , TN) is the southernmost States and union territories of India, state of India. The List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of Indi ...
. The Pacific emerald dove and Stephan's emerald dove were both considered
conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organism ...
.


Taxonomy

In 1743, the English naturalist George Edwards included a picture and a description of the common emerald dove in his ''A Natural History of Uncommon Birds''. He used the English name "Green Wing'd Dove". His drawing was made from a live bird at the home a merchant in
Rotherhithe Rotherhithe ( ) is a district of South London, England, and part of the London Borough of Southwark. It is on a peninsula on the south bank of the Thames, facing Wapping, Shadwell and Limehouse on the north bank, with the Isle of Dogs to the ea ...
near London. Edwards was told that the dove had come from the
East Indies The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The ''Indies'' broadly referred to various lands in Eastern world, the East or the Eastern Hemisphere, particularly the islands and mainl ...
. When in 1758 the Swedish naturalist
Carl Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
updated his ''
Systema Naturae ' (originally in Latin written ' with the Orthographic ligature, ligature æ) is one of the major works of the Sweden, Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the syste ...
'' for the tenth edition, he placed the common emerald dove with all the other pigeons in the
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
''
Columba Columba () or Colmcille (7 December 521 – 9 June 597 AD) was an Irish abbot and missionary evangelist credited with spreading Christianity in what is today Scotland at the start of the Hiberno-Scottish mission. He founded the important abbey ...
''. Linnaeus included a brief description, coined the
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 ...
''Columba indica'' and cited Edwards's work. The
specific epithet In Taxonomy (biology), 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 gramm ...
''indica'' is Latin for "Indian" and is used by Linnaeus to denote the
East Indies The East Indies (or simply the Indies) is a term used in historical narratives of the Age of Discovery. The ''Indies'' broadly referred to various lands in Eastern world, the East or the Eastern Hemisphere, particularly the islands and mainl ...
. The species is now placed in the genus '' Chalcophaps'' that was introduced by the English ornithologist
John Gould John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist who published monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould (illustrator), Elizabeth Gould, and several other artists, includ ...
in 1843. Six
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 ...
are recognised: * ''C. i. indica'' (
Linnaeus Carl Linnaeus (23 May 1707 – 10 January 1778), also known after ennoblement in 1761 as Carl von Linné,#Blunt, Blunt (2004), p. 171. was a Swedish biologist and physician who formalised binomial nomenclature, the modern system of naming o ...
, 1758) – India to south China, Malaysia, Philippines, Indonesian and west Papuan islands * ''C. i. robinsoni'' Baker, ECS, 1928 – Sri Lanka * ''C. i. maxima''
Hartert Ernst Johann Otto Hartert (29 October 1859 – 11 November 1933) was a widely published German people, German ornithologist. Life and career Hartert was born in the Free and Hanseatic City of Hamburg on 29 October 1859. In July 1891, he married ...
, 1931 –
Andaman Islands The Andaman Islands () are an archipelago, made up of 200 islands, in the northeastern Indian Ocean about southwest off the coasts of Myanmar's Ayeyarwady Region. Together with the Nicobar Islands to their south, the Andamans serve as a mari ...
* ''C. i. augusta'' Bonaparte, 1855 –
Nicobar Islands The Nicobar Islands are an archipelago, archipelagic island chain in the eastern Indian Ocean. They are located in Southeast Asia, northwest of Aceh on Sumatra, and separated from Thailand to the east by the Andaman Sea. Located southeast of t ...
* ''C. i. natalis'' Lister, 1889 –
Christmas Island Christmas Island, officially the Territory of Christmas Island, is an States and territories of Australia#External territories, Australian external territory in the Indian Ocean comprising the island of the same name. It is about south o ...
(Indian Ocean) * ''C. i. minima'' Hartert, 1931 –
Numfor Numfor (also Numfoor, Noemfoor, Noemfoer) is one of the Biak Islands (also known as the Schouten Islands) in Papua (Indonesian province), Papua province, northeastern Indonesia. It was the site of conflict between Empire of Japan, Japanese and ...
,
Biak Biak is the main island of Biak Archipelago located in Cenderawasih Bay near the northern coast of Papua (province), Papua, an Indonesian province, and is just northwest of New Guinea. Biak has many atolls, reefs, and corals. The largest popula ...
and
Mios Num Mios Num (aka: Num, Indonesian language: ''Pulau Mios Num'') is an island of the Yapen Islands group, in Papua Province of Western New Guinea, northeastern Indonesia. It is in Cenderawasih Bay. The Mios Num Strait separates it from Yapen ...
islands (off north New Guinea)


Description

The common emerald dove is a stocky, medium-sized pigeon, typically in length. The back and wings are bright emerald green. The flight
feather Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebrates and an exa ...
s and tail are blackish, and broad black and white bars show on the lower back in flight. The head and underparts are dark vinous pink, fading to greyish on the lower belly. The eyes are dark brown, the bill bright red and legs and feet rufous. The male has a white patch on the edge of the shoulders and a grey crown, which the female lacks. Females will tend to have a browner complexion with a grey mark on the shoulder. Immature birds resemble females but have brown scallops on their body and wing plumage.


Distribution and habitat

This is a common species in
tropical forest Tropical forests are forested ecoregions with tropical climates – that is, land areas approximately bounded by the Tropic of Cancer, tropics of Cancer and Tropic of Capricorn, Capricorn, but possibly affected by other factors such as prevailing ...
s and similar dense wet
woodland A woodland () is, in the broad sense, land covered with woody plants (trees and shrubs), or in a narrow sense, synonymous with wood (or in the U.S., the '' plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunli ...
s,
farm A farm (also called an agricultural holding) is an area of land that is devoted primarily to agricultural processes with the primary objective of producing food and other crops; it is the basic facility in food production. The name is used fo ...
s and
mangrove A mangrove is a shrub or tree that grows mainly in coastal saline water, saline or brackish water. Mangroves grow in an equatorial climate, typically along coastlines and tidal rivers. They have particular adaptations to take in extra oxygen a ...
s. It builds a scant stick
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 ...
in a
tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, e.g., including only woody plants with secondary growth, only ...
up to five metres and lays two cream-coloured
egg An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the ...
s.


Behaviour and ecology

Emerald doves usually occur singly, pairs or in small groups. They are quite terrestrial, often searching for fallen
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 ...
on the ground and spending little time in trees except when roosting. They eat
seed In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds ...
s and
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 ...
s of a wide variety of
plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...
s and are generally tame and approachable. They are usually found foraging in small groups or pairs. If there's a resource-rich area, small groups will maintain a territory. Their flight is fast and direct, with the regular beats and an occasional sharp flick of the
wing A wing is a type of fin that produces both Lift (force), lift and drag while moving through air. Wings are defined by two shape characteristics, an airfoil section and a planform (aeronautics), planform. Wing efficiency is expressed as lift-to-d ...
s which are characteristic of pigeons in general. They often fly low between patches of dense forest, but when disturbed, they will frequently walk away rather than fly. They are particularly good weavers when flying through
forest A forest is an ecosystem characterized by a dense ecological community, community of trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, ...
s. When flying, they expose a buff underwing and a chestnut colour of their flight
feather Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebrates and an exa ...
s. The call is a low soft moaning cooing consisting of about six to seven coos, starting quietly and rising. They also call a nasal "hoo-hoo-hoon". Males perform a bobbing dance during
courtship Courtship is the period wherein some couples get to know each other prior to a possible marriage or committed romantic, ''de facto'' relationship. Courtship traditionally may begin after a betrothal and may conclude with the celebration of marri ...
.


References

* Grimmett, ''Birds of India'', Inskipp and Inskipp,


External links


Xeno-canto: audio recordings of the common emerald dove
{{Taxonbar, from=Q795565 common emerald dove Birds of Indomalaya Birds of Taiwan common emerald dove common emerald dove