Black-throated macaroni
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Black-throated macaws ( Pteroglossus aracari ) |
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| Pteroglossus aracari | ||||||||||
| ( Linnaeus , 1758) |
The Black-Necked Aracari ( Pteroglossus aracari ) is in South America beheimateter woodpecker bird from the family of toucans . It belongs to the genus of the Schwarzarassaris and was first described by Carl von Linné in 1758 .
There are three subspecies: The nominate form P. aracari aracari , P. aracari atricollis ( Statius Müller 1776) and P. aracari vergens ( Griscom and Greenway 1937). According to the IUCN , the population is currently not at risk.
features
Black-throated macaws have a black head and neck. The top of the body, the wings and the tail are blackish green. Below the breast the bird is yellowish with a broad red horizontal stripe. The rump is red. The ear covers are dark brown. The featherless area around the eyes is blue-gray, the iris is dark brown. The flanks and the under tail-coverts are brown-olive, the thighs are gray-brown. The upper bill of the animals is yellowish-white with a narrow black ridge stripe and a transverse band at the base of the beak, the lower bill is black with a white border at the base; in males the beak is slightly longer than in females. They grow to be around 35 to 45 cm tall, regardless of gender, with a weight of 177 to 309 grams. The call of animals has been compared to the sound an ax makes when it hits a tree.
Due to the conspicuous coloration of its beak, the black-throated macaw in its area of distribution can hardly be confused with any other black or green macaw . Most similar to it is the double arassari , which however has a black band on the yellow chest. It differs from the brown-eared arassari in the ivory-colored tone of its upper beak. The beak of the brown-eared macaw, on the other hand, has an orange-yellow tone.
distribution and habitat
Black-throated macaws are found in the rainforests of Brazil , French Guiana , Guyana , Suriname, and Venezuela . It is predominantly a type of lowland forest. The largest part of the population occurs between sea level and 400 meters above sea level. In Venezuela, however, black-throated macaws are still observed at an altitude of 550 meters and in the state of Espírito Santo in southeastern Brazil, the black-throated macaws are also found at an altitude of 1,000 meters.
Its habitat is predominantly rainforests, but it also inhabits the Cerrado , where these forests are found in secondary forests and on plantations. He is mostly in the treetops.
Way of life
Black-throated macaws usually forage for food in pairs and small flocks of up to six individuals. However, groups of up to 30 individuals have also been observed. We know from captivity that black-throated macaws are very aggressive, at least during the breeding season. Like all Arassari species, they are cave breeders and predominantly use abandoned woodpecker holes as nesting sites. The clutch consists of two to four eggs. Both parent birds are involved in the brood and both parent birds also care for the young birds. Newly hatched nestlings are gray, featherless and blind. They fledge when they are around forty days old.
attitude
Black-throated macaws are occasionally on sale and kept in zoological gardens and bird parks as well as in private hands. The European zoos that black-throated macaws kept at the beginning of the 21st century include the zoos in Antwerp, Heidelberg, Berlin and London. Several zoos have successfully bred it.
supporting documents
literature
- Werner Lantermann: Toucans and Arassaris. Filander Verlag, Fürth 2002, ISBN 3-930831-46-5
- Lester L. Short and Jennifer FM Horne: Toucans, Barbets and Honeyguides - Ramphastidae, Capitonidae and Indicatoridae . Oxford University Press, Oxford 2001, ISBN 0-19-854666-1
Web links
- Videos, photos and sound recordings of Pteroglossus aracari in the Internet Bird Collection
Single receipts
- ↑ Pteroglossus aracari in the IUCN Red List of Threatened Species . Retrieved November 19, 2011.
- ↑ Ramphastidae ( Memento of the original from August 19, 2007 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. at nashvillezoo.org, accessed February 17, 2008
- ↑ Lamm, DW (1948): Notes on the Birds of the States of Pernambuco and Paraiba, Brazil (PDF; 1.2 MB); in: The Auk: 65 (2), p. 271
- ↑ Share et al., P. 383 and p. 384
- ↑ Short et al., P. 385
- ↑ Short et al., P. 386
- ↑ Lantermann, p. 132 and p. 133
