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Spix's macaw (''Cyanopsitta spixii''), also known as the little blue macaw, is a
macaw Macaws are a group of Neotropical parrot, New World parrots that are long-tailed and often colorful, in the Tribe (biology), tribe Arini (tribe), Arini. They are popular in aviculture or as companion parrots, although there are conservation con ...
species that was
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 Brazil. It is a member of tribe Arini in the subfamily Arinae ( Neotropical parrots), part of the
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Psittacidae The Family (biology), family Psittacidae or holotropical parrots is one of three families of true parrots. It comprises the 12 species of subfamily Psittacinae (the Afrotropics, Afrotropical parrots) and 167 of subfamily Arinae (the New World or ...
(the true parrots). It was first described by German naturalist Georg Marcgrave, when he was working in the State of
Pernambuco Pernambuco ( , , ) is a States of Brazil, state of Brazil located in the Northeast Region, Brazil, Northeast region of the country. With an estimated population of 9.5 million people as of 2024, it is the List of Brazilian states by population, ...
, Brazil in 1638 and it is named for German naturalist
Johann Baptist von Spix Johann Baptist Ritter von Spix (9 February 1781 – 13 March 1826) was a German natural history, biologist. From his expedition to Brazil, he brought to Germany a large variety of specimens of plants, insects, mammals, birds, amphibians and fish. ...
, who collected a specimen in 1819 on the bank of the
Rio São Francisco Rio or Río is the Portuguese and Spanish word for "river". The word also exists in Italian, but is largely obsolete and used in a poetical or literary context to mean "stream". Rio, RIO or Río may also refer to: Places United States * Rio, Fl ...
in northeast
Bahia Bahia () is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (state), São Paulo, Mina ...
in Brazil. This bird has been completely extirpated from its natural range, and following a several-year survey, the
IUCN 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 status ...
officially declared it
extinct in the wild A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range ...
in 2019. However, after over 20 years of conservation efforts, 200 macaws have been bred from just two parent birds, and 52 individual birds have since been reintroduced into their natural environment in June 2022. The bird is a medium-size parrot weighing about , smaller than most of the large macaws. Its appearance is various shades of blue, with a grey-blue head, light blue underparts, and vivid blue upperparts. Males and females are almost identical in appearance; however, the females are slightly smaller. The species inhabited
riparian A riparian zone or riparian area is the interface between land and a river or stream. In some regions, the terms riparian woodland, riparian forest, riparian buffer zone, riparian corridor, and riparian strip are used to characterize a ripar ...
Caraibeira (''
Tabebuia aurea ''Tabebuia aurea'' is a species of ''Tabebuia'' native to South America in Suriname, Brazil, eastern Bolivia, Peru, Paraguay, and northern Argentina. The common English name Caribbean trumpet tree is misleading, as it is not native to the Caribbe ...
'') woodland galleries in the drainage basin of the Rio São Francisco within the
Caatinga Caatinga () is a type of semi-arid tropical vegetation, and an ecoregion characterized by this vegetation in interior northeastern Brazil. The name "Caatinga" comes from the Tupi word '' ka'atinga'', meaning "white forest" or "white vegetat ...
dry forest climate of interior northeastern Brazil. It had a very restricted natural
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 ...
due to its dependence on the tree for nesting, feeding and roosting. It feeds primarily on seeds and nuts of Caraiba and various ''
Euphorbiaceae Euphorbiaceae (), the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of Euphorbia, the type genus of the family. Most spurges, such as ''Euphorbia paralias'', ar ...
'' (spurge) shrubs, the dominant vegetation of the Caatinga. Due to
deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...
in its limited range and specialized habitat, the bird was rare in the wild throughout the twentieth century. It has always been very rare in captivity, partly due to the remoteness of its natural range. It is listed on
CITES Appendix I CITES (shorter acronym for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals from the threats of inte ...
, which makes international trade prohibited except for legitimate conservation, scientific or educational purposes. The
IUCN 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 status ...
regard the Spix's macaw as
extinct in the wild A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as only consisting of living members kept in captivity or as a naturalized population outside its historic range ...
. Its last known stronghold in the wild was in northeastern Bahia, Brazil and sightings were very rare. After a 2000 sighting of a male bird, the next and last sighting was in 2016. The species is now maintained through a captive breeding program at several conservation organizations under the aegis of the Brazilian government. One of these organizations, the Association for the Conservation of Threatened Parrots (ACTP), moved birds back from Germany to Brazil in 2020 as part of their plan to release Spix's macaws back into the wild. The Brazilian
Chico Mendes Institute for Biodiversity Conservation The Chico Mendes Institute for Biodiversity Conservation ( Portuguese: ''Instituto Chico Mendes de Conservação da Biodiversidade'', ICMBio) is a government agency under the administration of the Brazilian Ministry of the Environment. It is nam ...
(ICMBio) is conducting a project ''Ararinha-Azul'' with an associated plan to restore the species to the wild as soon as sufficient breeding birds and restored habitat are available.


Taxonomy

Spix's macaw is the only known
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 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 ...
''Cyanopsitta''. The genus name is derived from the
Ancient Greek Ancient Greek (, ; ) includes the forms of the Greek language used in ancient Greece and the classical antiquity, ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Greek ...
''kuanos'' meaning "blue" and ''psittakos'' meaning "parrot". The species name ''spixii'' is a Latinized form of the surname "von Spix", hence ''Cyanopsitta spixii'' means "blue parrot of Spix". The genus ''Cyanopsitta'' is one of six genera of Central and South American
macaw Macaws are a group of Neotropical parrot, New World parrots that are long-tailed and often colorful, in the Tribe (biology), tribe Arini (tribe), Arini. They are popular in aviculture or as companion parrots, although there are conservation con ...
s in the tribe Arini, which also includes all the other long-tailed New World parrots. Tribe Arini together with the short-tailed Amazon and allied parrots and a few miscellaneous genera make up subfamily
Arinae The neotropical parrots or New World parrots comprise about 150 species in 32 genera found throughout South America, South and Central America, Mexico, the Caribbean islands and the southern United States. Among them are some of the most familia ...
of Neotropical parrots in family Psittacidae of true parrots. In 1638 Georg Marcgrave was the first European naturalist to observe and describe the species; however, it is named for Johann Baptist von Spix, who collected 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 ...
in April 1819 in Brazil, but gave it the misnomer ''Arara hyacinthinus'' not realizing till later that the name collided with ''Psittacus hyacinthinus'', the name assigned to the
hyacinth macaw The hyacinth macaw (''Anodorhynchus hyacinthinus''), or hyacinthine macaw, is a parrot native to central and eastern South America. With a length (from the top of its head to the tip of its long pointed tail) of about one meter it is longer tha ...
described by John Lathan in 1790. Spix's mistake was noticed in 1832 by German Professor of Zoology Johann Wagler, who realized that the 1819 specimen was smaller and a different colour from the hyacinth macaw and he designated the new species as "''Sittace spixii''". It wasn't until 1854 that naturalist Prince Charles Bonaparte properly placed it in its own genus, designating the bird ''Cyanopsitta spixi'', based on important morphological differences between it and the other blue macaws. It was listed as ''Cyanopsittacus spixi'' by Italian zoologist
Tommaso Salvadori Count Adelardo Tommaso Salvadori Paleotti (30 September 1835 – 9 October 1923) was an Italian zoologist and ornithologist. Biography Salvadori was born in Porto San Giorgio, son of Count Luigi Salvadori and Ethelyn Welby, who was English. His ...
in his 1891 ''Catalog of the Birds in the British Museum''. Naturalists have noted the Spix's similarity to other smaller members of tribe Arini based on general morphology as long ago as Rev. F.G. Dutton, president of the Avicultural Society U.K. in 1900: "it's more like a conure" ('conure' is not a defined taxon – in Dutton's time, it referred to the archaic genus ''Conurus''; today those would be among the smaller non-macaw parakeets in ''Arini''). Brazilian ornithologist Helmut Sick stated in 1981: "''Cyanopsitta spixii''...is not a real macaw". (Sick's remark was in the context of an article on ''Lear's macaw'', a larger blue macaw. He recognized, as Spix had not 150 years before, that ''C. spixii'' is notably different from the larger macaws). The morphology-based taxonomy of ''C. spixii'', intermediate between the macaws and the smaller Arini, has been confirmed by recent molecular phylogenetic studies. In a 2008 molecular phylogenetic study of 69 parrot genera, the
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 ...
diagrams indicate that ''C. spixii'' split from the ancestral parakeets before the differentiation of the modern macaws. However, not all of the macaw genera were represented in the study. The study also states that diversification of the Neotropical parrot lineages occurred starting 33 mya, a period roughly coinciding with the separation of South America from West Antarctica. The author notes that the study challenges the classification of British ornithologist Nigel Collar in the encyclopedic ''
Handbook of the Birds of the World The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. ...
'', volume 4 (1997). A 2011 study by the same authors which includes key genera of macaws further elucidates the macaw taxonomy: the clade diagram of that study places ''C. spixii'' in a clade including the macaw genera which is sister to a clade containing the ''Aratinga''s and other smaller parakeets. Within the macaw clade, ''C. spixii'' was the first taxon to diverge from the ancestral macaws; its nearest relatives are the red-bellied macaw (''Orthopsittaca manilata'') and the blue-headed macaw (''Primolius couloni'').


Description

Spix's macaw is easy to identify being the only small blue macaw and also by the bare grey facial skin of its lores and eyerings. plate 70. It is about long including tail length of . It has a wing length of . The external appearance of adult male and female are identical; however, the average weight of captive males is about and captive females average about . Its plumage is grey-blue on the head, pale blue on the underparts, and vivid blue on the upperparts, wings and tail. The legs and feet are brownish-black. In adults the bare facial skin is grey, the beak is entirely dark grey, and the irises are yellow. Juveniles are similar to adults, but they have pale grey bare facial skin, brown irises, and a white stripe along the top-center of their beaks (along the culmen).


Behaviour


Diet

In the wild, the most common seeds and nuts consumed by Spix's were from Pinhão ( ''Jatropha pohliana'' var. ''mollissima'') and Favela ('' Cnidoscolus phyllacanthus''). However these trees are colonizers, not native to the bird's habitat, so they could not have been historical staples of the diet. Its diet also included seeds and nuts from Joazeiro ('' Ziziphus joazeiro''), Baraúna ('' Schinopsis brasiliensis''), Imburana ('' Commiphora leptophloeos'' or '' Bursera leptophloeos''), Facheiro ('' Pilosocereus piauhyensis)'', '' Phoradendron'' species, Caraibeira (''Tabebuia caraiba''), Angico ('' Anadenanthera macrocarpa''), Umbu ('' Spondias tuberosa'') and Unha-de-gato ('' Acacia paniculata''). Reports from previous Spix's macaw researchers seem to add another two plants to the list: '' Maytenus rigida'' and '' Geoffroea spinosa''. '' Combretum leprosum'' may also be a possibility.


Reproduction

Captive bred Spix's macaws reach sexual maturity at seven years of age. A paired female born at the Loro Parque Fundación laid eggs at the age of five years, but these were infertile. It is suspected that late maturity in captivity may be due to inbreeding or other artificial environmental factors, as other parrots of similar size reach sexual maturity in two to four years. In the wild, mating involves elaborate courtship rituals, like feeding each other and flying together. This process is known to possibly take several seasons in other large parrots, and it may also be the case for the Spix's. They make their nests in the hollows of large mature Caraibeira trees, and reuse the nest year after year. The breeding season is November to March, with most eggs hatching in January to coincide with the start of the Caatinga January to April rainy season. In the wild, Spix's were believed to lay three eggs per clutch; in captivity, the average number is four eggs, and can range from one to seven. Incubation period is 25–28 days and only the female performs incubation duties. The chicks fledge in 70 days and are independent in 100–130 days. The
mating call A mating call is the auditory signal used by animals to attract mates. It can occur in males or females, but literature is abundantly favored toward researching mating calls in females. In addition, mating calls are often the subject of mate choi ...
of Spix's macaw can be described as the sound "whichaka". The sound is made by creating a low rumble in the abdomen bringing the sound up to a high pitch. Its voice is a repeated short grating. It also makes squawking noises. Its lifespan in the wild is unknown; the only documented bird (the last wild male), was older than 20 years. The eldest bird in captivity died at age 34.


Distribution and habitat

Various accounts relate that the birds were more common in Pernambuco than in Bahia through the 1960s but not later. Spix's macaw was most recently (1974–1987) known in the Río São Francisco valley, in northeastern Brazil, principally in the basins on the south side of the river in the State of Bahia. In 1974, ornithologist Helmut Sick, based on information from traders and trappers, extended the possible range of the Spix's macaw to embrace the northeastern part of the state of Goias and the southern part of the state of
Maranhão Maranhão () is a States of Brazil, state in Brazil. Located in the country's Northeast Region, Brazil, Northeast Region, it has a population of about 7 million and an area of and it is divided into 217 municipalities. Clockwise from north, it ...
. Other ornithologists reporting the bird in various parts of the state of
Piauí Piauí ( ) is one of the states of Brazil, located in the country's Northeast Region, Brazil, Northeast Region. The state has 1.6% of the Brazilian population and produces 0.7% of the Brazilian GDP. Piauí has the shortest coastline of any coas ...
further extended the range to a vast area of the dry interior of northeast Brazil. Study of the lone bird discovered at Melância creek in 1990 revealed substantive information about its habitat. It had been previously assumed that the Spix's macaw had a vast range in the interior of Brazil embracing several different habitat types, including buriti palm swamps, cerrado, and dry Caatinga. But the evidence collected in Melância Creek indicated that the Spix's macaw was a specially adapted inhabitant of the disappearing woodland galleries. Ornithologist Tony Silva mentions that "where Caraibeiras have been felled, as in the Pernambuco side of the São Francisco River, the species has disappeared". Much remains uncertain about the extent of the bird's original range, because most of its woodland habitat was cleared before naturalists observed either the birds or the Caraiba nesting sites. The historical range is now believed to have encompassed portions of the states of Bahia and Pernambuco in a wide corridor along a stretch of the Rio São Francisco between Juazeiro (or possibly Remanso) and Abaré. Previous observations of the birds from further west are very difficult to explain but conceivably stem from either escaped captive birds or more likely the misidentification of another species such as red-bellied macaw (''Orthopsittaca manilatus''). The Caatinga vegetation of northeastern Bahia (which hosts the Spix habitat) is stunted trees, thorny shrubs and cacti, dominated by plants of the family Euphorbiaceae. This macaw lived in the hottest and driest part of the "
Caatinga Caatinga () is a type of semi-arid tropical vegetation, and an ecoregion characterized by this vegetation in interior northeastern Brazil. The name "Caatinga" comes from the Tupi word '' ka'atinga'', meaning "white forest" or "white vegetat ...
" within Caraiba, or Caribbean trumpet tree ('' Tabebuia caraiba'') woodland galleries. The Caraibeira constitutes a microclimate within the Caatinga. The existing galleries are fringes of unique woodland extending a maximum of to either side along a series of seasonal waterways at least 8 m wide in the Rio São Francisco drainage basin. All T. caraiba woodland was recorded in the middle and lower levels of the creek system where fine
alluvial Alluvium (, ) is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is ...
deposits were present. The character of the galleries is tall (8m) evenly spaced Caraibeira trees, ten per hundred meters, interspersed with low scrub and desert cacti. Large mature trees of this species (and apparently no other) provided the nesting hollows of Spix's macaws, as well as shelter and their seedpods, food for the species. Notable among the seasonal waterways are Riacho Melância watershed 30 km south of Curaçá, where the last known wild Spix's macaw nest was located, adjacent Riacho Barra Grande, and Riacho da Vargem ~100 km to the north near Abaré all in the State of Bahia south of Rio São Francisco. In 1990, these were all that remained of what was once believed to be a vast filigree of creekside Caraibeira woodland extending 50 km into the Caatinga on either side of the Rio São Francisco along a significant stretch of its middle reaches. There is also one confirmed site, since cleared, along Brígida Creek on the north shore of Rio São Francisco in Pernambuco.


History

The species appears to have been seen and described – "MARACANA Brasiliensibus, avis Psittaco planè similis (cuius & species) sed maior, plumae totius ex gryseo subcoerulescunt, clamat ut Psittacus. Fructus amat, Murucuia imprimis. (Translation: "Brazilian parrot, bird very similar to Psittacus grey parrot ">grey_parrot.html" ;"title="grey parrot">grey parrot but larger, the entire plumage is ashy-bluish, calls like a parrot. Fruit it loves, especially Passionfruit.") – by the German naturalist Georg Marcgrave when he worked in Pernambuco in 1638. Spix's macaw is named for German naturalist Johann Baptist von Spix, who collected the first specimen in April 1819 near the São Francisco River in the vicinity of Juazeiro Recent authorities cite the type locality as Curaca, but others say the locality can't be known with certainty.. Spix wrote: "habitat gregarius, rarissimus licet, propre Joazeiro in campis riparüs fluminis St. Francisci, voce tenui insignis" ("it lives in flocks, although very rare, near Joazeiro in the region bordering the rio São Francisco, nd isnotable for its thin voice"). The next reported sighting of the bird was not for 84 years, in 1903 by Othmar Reiser of the
Austrian Academy of Sciences The Austrian Academy of Sciences (; ÖAW) is a legal entity under the special protection of the Republic of Austria. According to the statutes of the Academy its mission is to promote the sciences and humanities in every respect and in every fi ...
, west of Juazeiro at Lagoa de Parnaguá (lake at Parnagua) in the State of Piauí. (What we now know about its habitat and probable range casts doubt on this observation) Reiser had also seen one in captivity at a railway station in Remanso. These observations resulted in an early supposition of a vast potential range for the species in the dry interior of the northeast. With the passage of the Brazil Wildlife Protection Act in 1967, Brazil forbade the export of its wildlife, and in 1975 became a party to the CITES treaty. These actions barely affected the illicit bird trade, but Spix owners were forced underground (consequently complicating the later effort to initiate a captive recovery program). The bird had not been studied in the wild until the 1970s. In 1974, Brazilian ornithologist Helmut Sick observed groups of three and four of the birds near Formosa do Rio Preta in northwest Bahia flying over buriti Palms (Mauritia flexuosa). As recently as 1980, Robert Ridgely stated that "there is no available evidence indicating a recent decline in numbers." Beginning around 1980, at the very height of the illegal bird trade, traders and trappers removed dozens of Spix's from the wild, and by the early 80s, it was generally believed to be extinct in the wild. Naturalist Dr. Paul Roth conducted field surveys of the bird in the Curacá region from 1985 to 1988. Roth found only 5 birds in 1985, three in 1986, and only two after May 1987. Two of the birds were captured for trade in 1987. A single male, paired with a female blue-winged macaw, was discovered at the site in 1990. A female Spix's macaw released from captivity at the site in 1995 was killed by collision with a power line after seven weeks. The last wild male disappeared from the site in October 2000; his disappearance was thought to have marked the extinction of this species in the wild. However, wild Spix's macaws may have been sighted in 2016. While the
IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological ...
views its status as Critically Endangered and possibly extinct in the wild, ornithologist Nigel Collar of
BirdLife International BirdLife International is a global partnership of non-governmental organizations that strives to conserve birds and their habitats. BirdLife International's priorities include preventing extinction of bird species, identifying and safeguarding i ...
, the authority for the IUCN Redlist of birds now calls this bird extinct in the wild. As of June 2022, a flock of eight Spix' macaws has been released back into the wild and appears to be doing well. Another release for twelve more later occurred in December of the same year.


Decline and extinction in the wild

The bird was already rare by the time of Spix's discovery of it in 1819 following 100 years of intensive burning, logging and grazing of the Caatinga. Centuries of
deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...
, human encroachment and agricultural development along the Rio Sao Francisco corridor following European colonization of eastern Brazil preceded its precipitous decline in the latter part of the 20th century. Naturalists surveying its known remaining native habitat in the Curaçá region have estimated that it could have supported no more than about 60 birds at any time in the last 100 years. Contributing factors were the anthropic introduction of invasive and predatory species of
black 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 n ...
s,
feral cat A feral cat or a stray cat is an unowned domestic cat (''Felis catus'') that lives outdoors and avoids human contact; it does not allow itself to be handled or touched, and usually remains hidden from humans. Feral cats may breed over dozens ...
s,
mongoose A mongoose is a small terrestrial carnivorous mammal belonging to the family Herpestidae. This family has two subfamilies, the Herpestinae and the Mungotinae. The Herpestinae comprises 23 living species that are native to southern Europe, A ...
s and
marmoset The marmosets (), also known as zaris or sagoin, are twenty-two New World monkey species of the genera '' Callithrix'', '' Cebuella'', '' Callibella'', and ''Mico''. All four genera are part of the biological family Callitrichidae. The term ...
monkeys which prey on the eggs and young, and goats, sheep and cattle which destroy the regenerative growth of the woodland trees, particularly the Caraibeira seedlings. Other recent evidence has shown that
anthropic Anthropic PBC is an American artificial intelligence (AI) startup company founded in 2021. Anthropic has developed a family of large language models (LLMs) named Claude as a competitor to OpenAI's ChatGPT and Google's Gemini. According to the ...
changes that occurred on the northern shore of the São Francisco River, such as a broad scale conversion into agricultural lands and flooding following the construction of Sobradinho Dam starting in 1974, have changed the
flora Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring (indigenous (ecology), indigenous) native plant, native plants. The corresponding term for animals is ''fauna'', and for f ...
structure and displaced the Spix's macaw away from that portion of its original range. The decline of the species in the 1970s and early 80s is attributed to hunting and trapping of the birds, unsustainable harvesting of the Caraíba trees for firewood, the construction of the Sobradinho Dam above Juazeiro starting in 1974 that submerged the basin woodlands under an artificial lake, and the northward migration of the
Africanized bee The Africanized bee, also known as the Africanized honey bee (AHB) and colloquially as the "killer bee", is a Hybrid (biology), hybrid of the western honey bee (''Apis mellifera''), produced originally by crossbreeding of the African bee, East A ...
, which competes for nesting sites. Caraiba grows very slowly; most of the trees are 200–300 years old, and there has not been any regenerative growth for the last 50 years. In addition, 45% of the Caatinga dry forest in which the woodland galleries are embedded has been cleared for farms, ranches and plantations. Climate change resulting in
desertification Desertification is a type of gradual land degradation of Soil fertility, fertile land into arid desert due to a combination of natural processes and human activities. The immediate cause of desertification is the loss of most vegetation. This i ...
of significant parts of the Caatinga has permanently reduced the potential reclaimable habitat. An analysis in 2018 based on threats, time since last known confirmed records, and patterns of bird extinction suggested that the bird was in all probability extinct in the wild. As of 2019, the IUCN classifies the species as extinct in the wild.


Conservation

In the middle 1980s, by the time fieldwork to locate and understand the habitat of the Spix was completed, it was apparent that the Spix must be nearing extinction in the wild. Conservationists realized that a captive breeding program would be necessary to preserve the species. At a meeting in 1987 of conservationist groups including IUCN at Loro Parque (one of the original Spix holders) in
Tenerife Tenerife ( ; ; formerly spelled ''Teneriffe'') is the largest and most populous island of the Canary Islands, an Autonomous communities of Spain, autonomous community of Spain. With a land area of and a population of 965,575 inhabitants as of A ...
, Canary Islands (Spain), only 17 captive Spix macaws could be located. Without the attendance of most of the captive Spix holders or involvement of the Brazilian government, little was accomplished. In 1990, the Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis (IBAMA, Brazilian Institute of Environment and Renewable Natural Resources) established the Permanent Committee for the Recovery of Spix's Macaw, called CPRAA, and its ''Ararinha Azul'' project (Little Blue Macaw project) in order to conserve the species. At that time, the known captive population of Spix's stood at 15, and one in the wild. Early 1990 was the low point for conservation of the Spix. The Permanent Committee was dissolved in 2002 due to irreconcilable differences between the parties involved. In 2004 a committee was re-formed and re-structured under the title of "The Working Group for the Recovery of the Spix's Macaw". Since 1987, the Loro Parque Foundation financed the field program to protect and study the last wild male, to protect and restore key habitat, and other important actions. In 1997, the Loro Parque Foundation returned the ownership to the Government of Brazil of all the Spix's macaws held in its facilities. Between 2000 and 2003, most of two large collections of Spix at Birds International in the Philippines and the aviaries of Swiss aviculturist Dr. Hämmerli were purchased by
Sheikh Sheikh ( , , , , ''shuyūkh'' ) is an honorific title in the Arabic language, literally meaning "elder (administrative title), elder". It commonly designates a tribal chief or a Muslim ulama, scholar. Though this title generally refers to me ...
Saud bin Muhammed bin Ali Al-Thani of Qatar and became Al Wabra Wildlife Preservation. Under the Sheikh were instituted standards of animal keeping, veterinary care, animal husbandry and stud book records for the conservation of the Spix's. In 2007 and 2008, two farms totalling in Curaçá, State of Bahia, Brazil were purchased by the Lymington Foundation (with contributions from ACTP and Parrots International) and Al Wabra Wildlife Preservation. These compose a small but important part of the natural habitat of the Spix, in the vicinity where the last known wild Spix nest existed. Efforts to clear the habitat of introduced predators and restore the natural Caraibeira seedlings and important creek systems are ongoing on the land. In May 2012, Brazil's ICMBio formulated and published a 5-year National Action Plan (PAN) for conservation and reestablishment of the species in the wild. Highlights of the plan are to increase the captive population to 150 specimens (expected by 2020), build a breeding facility in Brazil within the Spix's native habitat, acquire and restore additional portions of its range, and prepare for its release into the wild between 2017 and 2021. Pursuant to the plan, in 2012, the Brazilian government established NEST, a private aviary near Avaré, State of Sao Paulo, Brazil as a breeding and staging center for eventual release of the Spix into the wild. Birds formerly housed at the Sao Paulo Zoo as well as Loro Parque Foundation and other conservation organizations were relocated to NEST. The Spix's at NEST are owned by the Brazilian government and managed by Al Wabra Wildlife Preservation.


Captive population

The existing captive population is descended from just 7 wild caught founder birds, which are believed to have all come from just two wild nests that existed post 1982: pairs originally owned by Birds International in the Philippines, Dr. Hämmerli in Switzerland, and Wolfgang Keissling (Loro Parque), and a male from the São Paulo Zoo. In the years since 1987 when naturalists, conservationists and later IBAMA/ICMBio started tracking the Spix, only two sets of birds unknown in 1987 have ever been discovered: Dr. Hämmerli's in 1991, and a single male bird found in Colorado, U.S. in 2002 named Presley. There is no evidence that any others not known in 1987 still exist (though see a cryptic reference to black market dealing in the birds in 1995.) As of 2022 there are approximately 177 Spix's macaws in captivity. Eighty-three of these are participating in an international breeding program managed by the Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio), the Natural Heritage Branch of the Brazilian Government. Most of these are managed at Al Wabra Wildlife Preservation (AWWP), which purchased the population of Birds International and most of the birds in Dr. Hämmerli's Swiss collection. Other Spixs are located at Loro Parque Foundation, Tenerife, Canary Islands, Association for the Conservation of Threatened Parrots (ACTP) in Berlin, Germany, NEST in Brazil and Pairi Daiza in Belgium. At three of these five conservation organizations (AWWP, ACTP and NEST), a captive breeding program is guiding Spix's macaw a step closer to re-establishment back to its natural habitat in Brazil. The female at Loro Parque Foundation cannot be bred for health reasons. Both the AWWP and the ACTP have loaned individuals to Jurong Bird Park in Singapore. The status and locations of 5 Spix's sold to private owners from Dr. Hämmerli's Swiss collection in 1999 are unknown but presumed to be still alive; they are the likely source of the approximately 13 Spix's in the hands of private owner(s) in Switzerland. In July 2015, the number of Spix's macaws held in captivity participating in the ICMBio recovery program reached 110 (12 in NEST, 12 in ACTP, & 86 in AWWP). The count does not include an unverifiable number of birds in private hands. Note: table data based on "Al Wabra ICMBio data from June 2013" and Watson, R. (Studbook Keeper) 2011. "Annual Report and Recommendations for 2011: Spix’s Macaw (''Cyanopsitta spixii'')".


Health and reproduction

The captive population suffers from very low
heterozygosity Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") () is the degree to which both copies of a chromosome or gene have the same genetic sequence. In other words, it is the degree of similarity of the alleles in an organism. Mos ...
– the original wild caught founder birds were few, closely related in the wild and intensively inbred in captivity – resulting in infertility, and high rate of embryo deaths (at AWWP, only one in six eggs laid is fertile; only two-thirds of those hatch). For unknown reasons, originally suspected to be bloodline related, captive specimens seemed to have delayed sexual maturity. The youngest pairs to lay fertile eggs were 10 years of age. Other captive breeding issues are that, possibly because of
inbreeding Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely genetic distance, related genetically. By analogy, the term is used in human reproduction, but more commonly refers to the genet ...
, many more hens than cocks are hatched, at least twice as many. All or nearly all hatched chicks in the breeding program are hand raised by experienced staff, to reduce the risk of losing a scarce live chick (only about one out of ten viable eggs laid hatch). No chick has been lost through weaning. Non-invasive DNA testing of plucked feathers has been introduced to determine the sex of the chicks. The sex of chicks is not determined until they undergo feather development when they reach one to two months of age. Spix's macaws choose their own mates independently, so best genetic pairings are not guaranteed. Artificially created "pairs" may groom and associate with each other as if they were a pair, but in fact are not mates, and it may take several seasons to determine this. Another complication is that infected birds cannot be paired with uninfected birds, due to risk of spreading viral diseases.


Artificial insemination

Newest developments in captive breeding programs of this species involved assisted reproduction techniques in the Spix's macaw: In the 2009–2010 breeding season, a research collaboration between Loro Parque Fundación of Tenerife, Canary Islands and the
University of Giessen University of Giessen, official name Justus Liebig University Giessen (), is a large public research university in Giessen, Hesse, Germany. It is one of the oldest institutions of higher education in the German-speaking world. It is named afte ...
in Germany used a new technique developed for semen collection and tested in many other parrot species on the Spix's macaws. However, artificial insemination was not used in this case. Scientists from the University of Giessen of the working group of Prof. Dr. Michael Lierz, Clinic for Birds, Reptiles, Amphibians and Fish, developed a novel technique for
semen collection Semen collection refers to the process of obtaining semen from human males or other animals with the use of various methods, for the purposes of artificial insemination, or medical study (usually in fertility clinics). Semen can be collected via ...
and artificial insemination in large parrots. The research team used artificial insemination for the first time ever in the Spix's macaw at Al Wabra Wildlife Preservation in 2012. In the 2013 breeding season veterinarians and scientists from Parrot Reproduction Consulting, a German veterinary practice focused on parrot reproduction medicine, and Al Wabra developed new specific strategies for semen collection and artificial insemination of the Spix's macaw. These resulted in the world's first egg fertilisation and first chicks of the Spix's macaw as a result of assisted reproduction, performed et al-Wabra Wildlife Preservation. Two chicks were produced and the first chick was called "Neumann" after Daniel Neumann, the veterinarian who performed these inseminations.


Reintroduction program

In 2018, the population of the species numbered approximately 158 individuals and an agreement was signed between the Ministry of the Environment of Brazil and conservation organizations of Belgium (Pairi Daiza Foundation) and Germany (Association for the Conservation of Threatened Parrots) to establish the repatriation of 50 Spix's macaws to Brazil by the first quarter of 2019. The Spix's macaw was eventually reintroduced to the wild in June and December 2022. The project of reintroduction of the Spix's macaw in Brazil included the creation of two protected areas in the state of
Bahia Bahia () is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (state), São Paulo, Mina ...
: the Wildlife Refuge of Spix's Macaw, in Curaçá, and the Environmental Protection Area of Spix's Macaw, in Juazeiro, with an awareness work done with the local population and the construction of a reproduction and readaptation center. In August 2018, 146 of the 160 Spix's macaws in the world lived in the Association for the Conservation of Threatened Parrots in Rüdersdorf, (Germany). 120 of them came from
Qatar Qatar, officially the State of Qatar, is a country in West Asia. It occupies the Geography of Qatar, Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it shares Qatar–Saudi Arabia border, its sole land b ...
, transferred due to the death of the maintainer of the Al Wabra Wildlife Preserve, Sheikh Saud bin Muhammed Al Thani, in 2014, and the economic embargo imposed to Qatar by Saudi Arabia, UAE, Egypt and Bahrain, in 2017. The goal of the Association is to produce about 20 macaws per year.


Born in the wild

Between April and July 2021, three Spix's macaw were born in the
Caatinga Caatinga () is a type of semi-arid tropical vegetation, and an ecoregion characterized by this vegetation in interior northeastern Brazil. The name "Caatinga" comes from the Tupi word '' ka'atinga'', meaning "white forest" or "white vegetat ...
region in the state of
Bahia Bahia () is one of the 26 Federative units of Brazil, states of Brazil, located in the Northeast Region, Brazil, Northeast Region of the country. It is the fourth-largest Brazilian state by population (after São Paulo (state), São Paulo, Mina ...
in Brazil, twenty years after the declaration of extinction in wild by the Brazilian government. The chicks are from a couple that came from Germany in 2020. The
Chico Mendes Institute for Biodiversity Conservation The Chico Mendes Institute for Biodiversity Conservation ( Portuguese: ''Instituto Chico Mendes de Conservação da Biodiversidade'', ICMBio) is a government agency under the administration of the Brazilian Ministry of the Environment. It is nam ...
(ICMBio), also declared that the species will be reintroduced into nature in the next years. Two more Spix's macaws were confirmed to be born in the wild in late October 2023 through a pair that came together after being released from captivity from June and December respectively.


In aviculture

One of the earliest records (and one of very few at all) of a Spix's macaw in a public zoo was a dramatic display of "the four blues" including Spix's macaw, glaucous macaw,
hyacinth macaw The hyacinth macaw (''Anodorhynchus hyacinthinus''), or hyacinthine macaw, is a parrot native to central and eastern South America. With a length (from the top of its head to the tip of its long pointed tail) of about one meter it is longer tha ...
, and the Lear's macaw in 1900 at the Berlin Zoo. The bird was exceedingly rare in aviculture, the few being held by wealthy collectors rather than privately as pets. A trickle of Spix's appeared in captivity starting in the late 1800s. The earliest known specimens were three held by the London Zoological Society between 1878 and 1902. One of the few accounts of the Spix in captivity was given by Rev. F.G. Dutton, president of the Avicultural Society U.K. in 1900: "I have not yet seen a good-tempered Spix ... My Spix, which is really more a Conure than a Macaw, will not look at sop of any sort, except sponge cake given from one's fingers, only drinks plain water, and lives mainly on sunflower seed. It has hemp, millet, and canary, and peanuts, but I do not think it eats much of any of them. It barks the branches of the tree in which it is loose, and may eat the bark. It would very likely be all the better if it would eat bread and milk, as it might then produce some flight feathers, which it never yet has had. But I expect it would not eat any sop, even if I gave it nothing else." The bird remained rare and highly coveted. The first captive breeding occurred in the 1950s in Brazil, in the aviaries of the late Alvaro Carvalhaes, an aviculturist from Santos. He hatched numerous chicks, some reports say as many as 24, one of which ended up at the Zoo di Napoli, where it remained alive until the late 1980s. Most of his birds died of poisoning in the 1970s. Some of these birds were the likely source of rumored Brazilian Spix owners in the 1960s and 1970s. Bates and Busenbark say that the bird was intelligent and affectionate, talked some, and had no worse proclivity for screaming than Amazons. They also noted that the Spix were spiteful to other birds. In October 2002, a Spix named Presley was discovered in
Colorado Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
, and repatriated to Brazil. This Spix had not been among those known in 1987. Because all known specimens of the Spix's macaw are now in a conservation program run by the Brazilian government, there are now no sources from which the bird may be obtained for the pet trade. Presley died on 25 June 2014 outside
São Paulo São Paulo (; ; Portuguese for 'Paul the Apostle, Saint Paul') is the capital of the São Paulo (state), state of São Paulo, as well as the List of cities in Brazil by population, most populous city in Brazil, the List of largest cities in the ...
, at the approximate age of 40. What appears to be the last Spix discovered in the wild was found on 18 June 2016 in Curaçá, Brazil; however, it is speculated that this may have been a bird released from captivity due to fear of the authorities.


In popular culture

In the animated TV series '' Noah's Island'', the "Born to be Wild" episode focuses on Noah, the main character, bringing a breeding pair of Spix's macaws (though they don’t resemble the species in life) to his island from the Amazon rainforest, in the hope that they will breed. At first, the two macaws are both very aggressive and fight with each other, but they eventually make up and fall in love. In the opener of the Gorgo episode of ''
Mystery Science Theater 3000 ''Mystery Science Theater 3000'' (abbreviated as ''MST3K'') is an American science fiction comedy television series created by Joel Hodgson. The show premiered on WUCW, KTMA-TV (now WUCW) in Saint Paul, Minnesota, on November 24, 1988. It then ...
'',
Crow A crow is a bird of the genus ''Corvus'', or more broadly, a synonym for all of ''Corvus''. The word "crow" is used as part of the common name of many species. The related term "raven" is not linked scientifically to any certain trait but is rathe ...
finds that his head crown has become a nesting spot for two Spix's macaw eggs. Later in the episode he reveals that the eggs have been taken away by Egg Protective Services after he accidentally made an omelet in front of them. In the 2011 animated movie '' Rio'', the main characters Blu ( Jesse Eisenberg) and Jewel (
Anne Hathaway Anne Jacqueline Hathaway (born November 12, 1982) is an American actress. List of awards and nominations received by Anne Hathaway, Her accolades include an Academy Award, a British Academy Film Award, a Golden Globe Award, and a Primetime ...
) are the supposed last pair of Spix's macaws in the world (although they are referred to as blue macaws). The movie even references their extinct-in-the-wild status and at one point
ornithologist Ornithology, from Ancient Greek ὄρνις (''órnis''), meaning "bird", and -logy from λόγος (''lógos''), meaning "study", is a branch of zoology dedicated to the study of birds. Several aspects of ornithology differ from related discip ...
Túlio Monteiro mentions the species' scientific name. In its 2014 sequel '' Rio 2'', it is revealed that they are not the last pair at all, but in actuality other Spix's macaws are thriving secretly in the
Amazon rainforest The Amazon rainforest, also called the Amazon jungle or Amazonia, is a Tropical and subtropical moist broadleaf forests, moist broadleaf tropical rainforest in the Amazon biome that covers most of the Amazon basin of South America. This basin ...
. In a 2008 episode titled "Wildlife" of '' Law and Order SVU'' the bird was included in an international animal smuggling ring. It was found in the purse of a victim who had been mauled by a tiger. References were made to the extreme rarity of the bird and the potential value of it and other endangered species.Law and Order SVU Episode "Wildlife". Original air date 18 November 2008


Possible rediscovery

On 18 June 2016 one specimen was seen in Curaçá in the Brazilian state of Bahia. On 19 June, the bird was filmed in poor quality although its call was identified as a Spix's macaw. However, Birdlife noted it is possible the individual was a released captive bird.


Notes


References


Cited texts

* *del Hoyo, et al.(eds) (1997) ''Handbook of the Birds of the World, vol.4'', Family Psittacidae (Parrots), N.J. Collar, pp-280-479, Lynx Edicions, Barcelona, Spain *Donald, Pain, Marsden & Collar (2010) ''Facing Extinction: the World's Rarest Birds and the Race to Save Them'' T. & A. D. Poyser


Further reading

A note on the references. There are only about a dozen original ornithological research papers devoted exclusively to the Spix written in the last 40 years. Most are collected at www.bluemacaws.org. A comprehensive natural and conservation history through late 2002 is available in Juniper's ''Spix Macaw'' book. More recent information is available in periodic reports about the parrots at Loro Parque and Al Wabra. Most other material is derived. * Sick, Helmut (1993). ''Birds in Brazil: A Natural History''. Princeton University Press. . * Silva, Tony (1993). ''A Monograph of Macaws and Conures''. .


External links


Macaw-facts.com: Spix Macaw research
– ''in-depth articles''.
Bluemacaws.org: Blue Macaws website
– ''photos, videos, information''.
Birdlife International: Spix's macaw factsheetBBC Nature: Spix's macaw
{{Authority control
Spix's macaw Spix's macaw (''Cyanopsitta spixii''), also known as the little blue macaw, is a macaw species that was Endemism, endemic to Brazil. It is a member of tribe Arini (tribe), Arini in the subfamily Arinae (Neotropical parrots), part of the family ...
Birds of the Caatinga Endemic birds of Brazil
Spix's macaw Spix's macaw (''Cyanopsitta spixii''), also known as the little blue macaw, is a macaw species that was Endemism, endemic to Brazil. It is a member of tribe Arini (tribe), Arini in the subfamily Arinae (Neotropical parrots), part of the family ...
Macaws
Spix's macaw Spix's macaw (''Cyanopsitta spixii''), also known as the little blue macaw, is a macaw species that was Endemism, endemic to Brazil. It is a member of tribe Arini (tribe), Arini in the subfamily Arinae (Neotropical parrots), part of the family ...
Spix's macaw Spix's macaw (''Cyanopsitta spixii''), also known as the little blue macaw, is a macaw species that was Endemism, endemic to Brazil. It is a member of tribe Arini (tribe), Arini in the subfamily Arinae (Neotropical parrots), part of the family ...
Articles containing video clips Species that are or were threatened by deforestation