Blue-throated macaw | |
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At Cincinnati Zoo and Botanical Garden, Ohio, USA | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Psittaciformes |
Family: | Psittacidae |
Genus: | Ara |
Species: | A. glaucogularis |
Binomial name | |
Ara glaucogularis Dabbene, 1921 | |
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Distribution range | |
Synonyms | |
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The blue-throated macaw (Ara glaucogularis), also known as the Caninde macaw or Wagler's macaw, [3] is a macaw endemic to a small area of north-central Bolivia, known as Los Llanos de Moxos. In 2014 this species was designated by law as a natural patrimony of Bolivia. [4] Until 2010, it was hunted by native people to make feathered "Moxeño" headdresses for "machetero" ritual dances. [5]
Recent population and range estimates suggest that about 208–303 adult individuals remain in the wild. [6] Its demise was brought upon by nesting competition, avian predation, and a small native range, exacerbated by indigenous hunting and capture for the pet trade. [7] Current threats continue to include hunting and trapping as well as tree cutting, invasive species, disease, and use of powders or foams used to extinguish fires. [6] It is listed as Critically Endangered by the IUCN in the wild and is protected by trading prohibitions. [8]
The name "Wagler's macaw" is in honor of German herpetologist and ornithologist Johann Georg Wagler, who processed many of Johan Baptist von Spix's Brazilian collections at the Ludwig Maximilian University of Munich, and first described the blue macaws for a European readership in Monographia Psittacorum (1832).
Ara is from a Tupi Indian word for macaw; glauco (glaucous Latin for greyish-blue or green) + gularis (Latin: throat). The Blue-throated macaw is one of 8 extant species (and a few extinct species) in genus Ara of large long-tailed parrots collectively called macaws. The genus Ara is one of six genera of Central and South American macaws 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 of Neotropical parrots in family Psittacidae of true parrots.
The blue-throated macaw was originally thought to be a subspecies (Ara ararauna caninde) of the similar-looking blue-and-yellow macaw. [9]
The blue-throated macaw is about 85 cm (33 in) long including the length of its tail feathers and has a wingspan of approximately three feet or 90 cm. [10] It weighs about 900 g (32 oz) to 1,100 g (39 oz). There is little easily observable sexual dimorphism; however, males tend to be a little bigger than females with approximate masses of 750 g and 950 g respectively. [10] Upperparts are turquoise-blue, slightly duller on crown and brighter on rump. Underparts largely bright yellow but the vent is pale blue. It has a bare facial patch obscured by blue feather-lines merging into a blue lower cheek and throat, separated from its crown by a narrow yellow stripe and bare pink skin around base of the large, black bill. [11] On the face there is a sparsely feathered patch of skin near the base of the large dark-colored bill that has 5 or 6 horizontal stripes of blue feathers which are unique for every blue-throated macaw and can be used to individually identify adults. [10]
The adults have yellow irises and the juveniles have brown irises. [8] The eye color of a nestling is initially black and changes to brown soon after the eyes open. Between one and three years old, the eyes will turn grey, then white. As the macaw matures, the iris turns yellow and the amount of gold increases with age after 10 years. Elderly macaws show a ring of dark grey surrounding the pupil where the iris has become thinner and the back of the retina shows through. [10] It can be separated from the slightly larger blue-and-yellow macaw by the blue (not black) throat, the blue (not green) crown and the lack of contrast between the remiges and upperwing coverts.
The blue-throated macaw lives in the Llano de Moxos of the Beni Department of Bolivia, nesting in "Islas" (islands) of palm trees that dot the level plains. It is not a forest-dwelling bird. This species is one of the rarest in the world. There are two areas inhabited by two sub-populations of Ara glaucogularis: one is to the northwest of Trinidad (the capital city of Beni), and the other is to the south of Trinidad. [10] This complex landscape consists of grasslands, marshes, forest islands, and corridors of forests along waterways. [12] They occur most often between the elevations of 200 and 300 m. [10]
Blue-throated macaws are most frequently found in monogamous pairs, but small groups of 7–9 do occur and one large roosting group of 70 is known. [11] It is not known if these macaws will pair with another mate if their original mate dies. Their main mode of locomotion is flying, but they are also able to climb trees, maneuver along branches and walk on the ground. These birds are active during the day and usually stay in one general area. Blue-throated macaws communicate mostly by sound. When they suspect danger, they emit a very loud alarming call and promptly fly off. Blue-throated macaws are known to communicate with each other with quiet caws as well. [10]
Blue-throated macaws do not eat seeds and nuts to the same extent as many other macaw species do. Instead, they primarily eat fruit from large palms. The palm species Attalea phalerata is the most predominant source, but they will also eat from Acrocomia aculeata and Mauritia flexuosa . The macaws eat the mesocarp from ripe and nearly ripe fruit and have also been observed drinking the liquid from very immature fruit. [10]
Blue-throated macaws usually breed once a year but if the eggs or nestlings are lost, they may produce a second clutch in the same breeding season. A clutch consists of one to three eggs and incubates for 26 days. Nestlings have a mass of approximately 18 g at hatching and fledge at 13 to 14 weeks. The young macaws are still fully dependent upon their parents for food after they fledge until they are capable of foraging by themselves. Even after this occurs, it has been observed that young blue-throated macaws will stay with their parents up to a year. During this time, the parents will skip an entire breeding season. Blue-throated macaws reach sexual maturity at about 5 years of age. [10]
Blue-throated macaws usually nest in cavities of palm trees, most often Attalea phalerata, although it will nest in other palm species as well. Dead palms are the preferred nest as they are hollowed out by large grubs after the tree has died. Nesting pairs of blue-throated macaws do not consistently stay at one nest for consecutive breeding seasons and will usually search for different nesting sites every year. [10] In the wild the blue-throated macaw often compete for nesting-holes in trees with the blue-and-yellow macaw, green-winged macaw, scarlet macaw, woodpeckers, toco toucans, barn owls, bats, and bees. [10] The number of suitable nest trees has been in decline due to the large amounts of deforestation in its natural habitat. [8]
The blue-throated macaw has a very small population and is on the verge of extinction in the wild. It is listed on the IUCN Red List as critically endangered. [1] It is also listed in Appendix I by CITES. Trapping is illegal as blue-throated macaws have been protected by the national legislation of Bolivia. [10] According to locals the wild population of the blue-throated macaw in the 1980s was thought to number 500-1000 individuals. Although trapping ceased later in the 1990s, the wild population remains low, with previous estimates of between 110 and 130 individuals, [13] that more recently have been increased to about 350–400 after surveys by Armonia Association and the Loro Parque Fundacion found additional birds. [14] The World Parrot Trust has many volunteers and employees working to monitor the nests to protect the chicks from predation. Chicks are also examined periodically to ensure that they are healthy and receiving adequate food from their parents. If necessary, the chick is supplemented with formula. Nest boxes have been built, current nest sites improved, and support from the local landowners has been established. [10] In 2008, American Bird Conservancy partnered with the World Land Trust-US, Loro Parque Fundacion, and Assiociacion Armonia to create the blue-throated macaw Reserve. In 2010, the reserve was expanded by 2,800 acres (formerly Juvena Ranch) and is now 11,500 acres. [12]
Armonia has also created a program in recent years to replace the real feathers in traditional indigenous 'machetero' headdresses with artificial feathers created from hand-painted palm fronds. The feathers for the headdresses were previously culled from several species of macaw, including the Blue-throated, and as many as 10 birds were killed to make one head-piece. [15]
On November 4, 2013, the blue-throated macaw was listed under the Endangered Species Act, per the USFWS Final rule. Because of their large captive population, the American Federation of Aviculture asked that captive-born blue-throated macaws not be listed through a 19-page submission to the federal government.
They are relatively easy to find in captivity, and the captive population consists of about 1000–1100 individuals. [16] Individuals are kept in several zoos around the world, among them the Santa Cruz zoo in Bolivia. Captive blue-throated macaws have successfully hybridized with the military macaw, producing offspring known by aviculturists as Corrientes macaws. [17]
Several breeding and conservation schemes in zoos have now been set up to save this species. Other projects have been started to protect the remaining wild population, but at present, numbers are still decreasing.
In the wild, within the palm groves of Bolivia, birds nest in tree hollows created in dead palm trunks, rotten knot-holes and dead limbs of trees. There is some evidence that parents maintain the third chick of a clutch with minimal food as an insurance against the loss of the older dominant chicks. If disaster should befall the larger chick, the parent can switch to feeding the youngest, and it will exhibit a constant growth curve from the day of active feeding. It is this physiological response that enables researchers to raise the third chick of a clutch in captivity and then return them to the wild nests when they are nearing fledge.
Blue-throated macaws are early nesters and utilize these rare resources of nest holes before the other macaws are in breeding condition.
The blue-throated macaw is sometimes, albeit uncommonly kept as a pet companion parrot. When tame, it tends to be an outgoing, docile and affectionate bird, even cuddly with humans in some circumstances. An intelligent bird; like most parrots, it requires several hours outside its cage every day and regular social interaction with humans or other birds in order to remain healthy, although it is sometimes known to bully other birds kept alongside it. The species is known for its predilection for damaging and disassembling its keeper's property, as well as opening and escaping from its cage if left unsupervised. It may be less noisy than other large macaw species and while it is not known for its talking ability, it may learn to mimic a few words. [18] [9] The World Parrot Trust recommends that the blue-throated macaw be kept in an enclosure of 15 metres in length and that this species should not be kept indoors permanently. It may live for over 50 years in captivity. [19]
Macaws are a group of New World parrots that are long-tailed and often colorful, in the tribe Arini. They are popular in aviculture or as companion parrots, although there are conservation concerns about several species in the wild.
Spix's macaw, also known as the little blue macaw, is a macaw species that was endemic to Brazil. It is a member of tribe Arini in the subfamily Arinae, part of the family Psittacidae. It was first described by German naturalist Georg Marcgrave, when he was working in the State of Pernambuco, Brazil in 1638 and it is named for German naturalist Johann Baptist von Spix, who collected a specimen in 1819 on the bank of the Rio São Francisco in northeast Bahia in Brazil. This bird has been completely extirpated from its natural range, and following a several-year survey, the IUCN officially declared it extinct in the wild 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 scarlet macaw is a large yellow, red and blue Neotropical parrot native to humid evergreen forests of the Americas. Its range extends from southeastern Mexico to Peru, Ecuador, Colombia, Bolivia, Venezuela and Brazil in lowlands of 500 m (1,600 ft) up to 1,000 m (3,300 ft), the Caribbean island of Trinidad, as well as the Pacific island of Coiba. Formerly, the northern extent of its range included southern Tamaulipas. In some areas, it has suffered local extinction because of habitat destruction, or capture for the parrot trade, but in other areas, it remains fairly common. It is the national bird of Honduras. Like its relative the blue-and-yellow macaw, the scarlet macaw is a popular bird in aviculture as a result of its striking plumage. It is the third most common macaw species in captivity after the Blue and Gold and Greenwing Macaw respectively. In recent years it has become much rarer in captivity and much more expensive due to its placement on CITES Appendix I. In some countries its price is double the price of a Greenwing or up to four times the price of a blue and gold, but in the United States they are still cheaper than in other countries because of an already existing large avicultural population.
Lear's macaw, also known as the indigo macaw, is a large all-blue Brazilian parrot, a member of a large group of neotropical parrots known as macaws. It was first described by Charles Lucien Bonaparte in 1856. Lear's macaw is 70–75 cm long and weighs around 950 g. It is coloured almost completely blue, with a yellow patch of skin at the base of the heavy, black bill.
The red-and-green macaw, also known as the green-winged macaw, is a large, mostly-red macaw of the genus Ara. It is popular in aviculture, and is the second most commonly kept macaw species after its cousin, the Blue and Gold. However, they are not as common in captivity as the Blue and Gold Macaw, and are much more expensive; prices are often double that of the blue and gold.
The blue-and-yellow macaw, also known as the blue-and-gold macaw, is a large Neotropical parrot with a mostly blue dorsum, light yellow/orange venter, and gradient hues of green on top of its head. It is a member of the large group of neotropical parrots known as macaws. It inhabits forest, woodland and savannah of tropical Central and South America, as well as the island of Trinidad in the Caribbean. They are popular in aviculture because of their striking color, ability to talk, ready availability in the marketplace, and close bonding to humans. It is the most commonly kept macaw species in captivity worldwide as a pet or companion parrot and is also the cheapest among the large macaws.
The hyacinth macaw, or hyacinthine macaw, is a parrot native to central and eastern South America. With a length of about one meter it is longer than any other species of parrot. It is the largest macaw and the largest flying parrot species; the flightless kākāpō of New Zealand outweighs it at up to 3.5 kg. While generally easily recognized, it could be confused with the smaller Lear's macaw. Habitat loss and the trapping of wild birds for the pet trade have taken a heavy toll on their population in the wild, so the species is classified as Vulnerable on the International Union for Conservation of Nature's Red List, and it is protected by its listing on Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
The red-fronted macaw is a parrot endemic to a small semi-desert mountainous area of Bolivia. It is a critically endangered species; it has been successfully bred in captivity, and is available, if not common, as a pet. It is also sometimes known in the literature as Lafresnaye's macaw, named for the French ornithologist Frédéric de Lafresnaye, who was one of the first to describe the species.
The red-bellied macaw, also known as Guacamaya Manilata, is a medium-sized, mostly green parrot, a member of a group of large Neotropical parrots known as macaws. It is the largest of what are commonly called "mini-macaws". The belly has a large maroon patch which gives the species its name.
The military macaw is a medium- to large-sized macaw, named after its green and red plumage vaguely resembling a military uniform. It is native from west-central Mexico south through northern Argentina and Bolivia. While most wild populations are currently listed by the IUCN as vulnerable - and listed as endangered by Mexico - the species is still seen commonly in zoos and parks worldwide. The military macaw may be bred in captivity with relative ease, and is usually available through the pet trade. It is among the longest-lived and most expensive bird species one can own, requiring advanced knowledge, experience and confidence to keep them healthy, stimulated and thriving.
The red-shouldered macaw (Diopsittaca nobilis) is a small green South American parrot, a member of a large group of Neotropical parrots called macaws. The species is named for the red coverts on its wings. It is the smallest macaw, being 30–35 cm (12–14 in) in length - similar in size to the Aratinga parakeets. It is native to the tropical lowlands, savannah, and swamplands of Brazil, the Guianas, Bolivia, Venezuela, and far south-eastern Peru. There are three subspecies: The noble macaw(Diopsittaca nobilis cumanensis), Hahn's macaw(Diopsittaca nobilis nobilis), and the long-winged macaw(Diopsittaca nobilis longipennis). The long-winged macaw is a poorly distinct third subspecies that has longer wings, but is otherwise similar to the noble macaw. The Hahn's subspecies is named for German zoologist Carl-Wilhelm Hahn, who in 1834 began compiling Ornithologischer Atlas oder naturgetreue Abbildung und Beschreibung der aussereuropäischen Vögel (Engl: Ornithological Atlas or natural depiction and description of birds from outside Europe).
The golden-collared macaw or yellow-collared macaw is a small mostly green Central South American parrot, a member of a large group of Neotropical parrots known as macaws. It has a bright yellow patch on the back of its neck/upper shoulders that gives the species its name. In aviculture, it is one of a number of smaller macaws often called "mini-macaws".
The chestnut-fronted macaw or severe macaw is one of the largest of the mini-macaws. It reaches a size of around 45 cm (18 in) of which around half is the length of the tail.
The great green macaw, also known as Buffon's macaw or the great military macaw, is a critically endangered Central and South America parrot found in Nicaragua, Honduras, Costa Rica, Panama, Colombia and Ecuador. Two allopatric subspecies are recognized; the nominate subspecies, Ara ambiguus ssp. ambiguus, occurs from Honduras to Colombia, while Ara ambiguus ssp. guayaquilensis appears to be endemic to remnants of dry forests on the southern Pacific coast of Ecuador. The nominate subspecies lives in the canopy of wet tropical forests and in Costa Rica is usually associated with the almendro tree, Dipteryx oleifera.
The western corella also known as the western long-billed corella, is a species of white cockatoo endemic to south-western Australia.
Ara is a Neotropical genus of macaws with eight extant species and at least two extinct species. The genus name was coined by French naturalist Bernard Germain de Lacépède in 1799. It gives its name to and is part of the Arini, or tribe of Neotropical parrots. The genus name Ara is derived from the Tupi word ará, an onomatopoeia of the sound a macaw makes.
The imperial amazon or Dominican amazon, also known as the sisserou or sisserou parrot, is a parrot found only on the Caribbean island of Dominica. It has been designated as the national bird of Dominica, and features on the national flag of Dominica. The species is critically endangered. In 2019, it was estimated there were only about 50 mature individuals left in the wild.
The rock parrot is a species of grass parrot native to Australia. Described by John Gould in 1841, it is a small parrot 22–24 cm long and weighing 50–60 g with predominantly olive-brown upperparts and more yellowish underparts. Its head is olive with light blue forecheeks and lores, and a dark blue frontal band line across the crown with lighter blue above and below. The sexes are similar in appearance, although the female tends to have a duller frontal band and less blue on the face. The female's call also tends to be far louder and more shrill than the male's. Two subspecies are currently recognised.
The blue-headed macaw or Coulon's macaw is a macaw native to eastern Peru, northwestern Bolivia, and far western Brazil. It has a total length of about 41 cm (16 in), making it a member of the group of smaller macaws sometimes known as the mini-macaws, which includes any species of macaw with a total length of 50 cm (20 in) or less. As in all macaws, its tail is long and pointed and the bill is large and heavy.
The Macaw Society is a long-term research project on the ecology and conservation of macaws and parrots under the direction of Donald Brightsmith and Gabriela Vigo of the Schubot Center for Avian Health at the Texas A&M University. The project has been working with wildlife and local communities since 1989. The long-term research and monitoring have provided many insights into various aspects of parrot and wildlife of south-eastern Peru. Macaws are among the most effective flagship species for ecosystem conservation in the Amazonian rainforest.