Gould-Arassari
| Gould-Arassari | ||||||||||
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| Systematics | ||||||||||
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| Scientific name | ||||||||||
| Selenidera gouldii | ||||||||||
| ( Natterer , 1837) |
The Gould's Arassari ( Selenidera gouldii ) is a species of bird in the toucan family. It occurs in South America. The IUCN classifies it as 
(= least concern - not endangered). The name honors the ornithologist John Gould .
No subspecies are distinguished.
Appearance
The Gould Arassari reaches a body length of 32 to 34 centimeters. The males of the nominate form have a wing length of 12.0 to 13.5 centimeters. The tail length is 10.0 to 12.1 inches and the beak is between 5.5 and 6.7 inches long. Females have similar body dimensions apart from the beak. Their beak length is between 4.9 and 6.0 centimeters.
The Gould Arassari is very similar to the closely related Spotted Arassari . The males of the nominate form have a black head, black neck and black chest. There is a yellow band in the neck. The ear cover feathers are yellow-orange and turn yellow towards the neck. The top of the body is dark olive green, the belly is yellowish green. The flanks are orange-yellow, while the legs are red-brown. The under tail cover is red. The tail feathers are dark green, the six central tail feathers end in a brown tip.
The beak is long in relation to the body size, which allows a clear assignment to the toucan family. The upper beak is black and has a whitish-horn-colored edge at the base of the beak. The tip of the beak, however, is yellow. The lower beak is yellowish white, the tip is also yellowish, a black vertical stripe separates the yellow beak tip from the otherwise lighter beak. The iris is blue-green, the featherless feet are gray-black.
The sexual dimorphism is very pronounced in the Gould-Arassari. The females are light red-brown from chin to belly, the black areas on the upper side of the body of the male are maroon-brown in the female.
Distribution area, habitat and way of life
The distribution area of the Gould-Arassaris extends to forests of the lowlands east of the Rio Madeira and south of the Amazon. It occurs there up to the northern edge of the Cerrado . He is a pure forest dweller whose preferred habitat are evergreen tropical forests. It occurs there predominantly in the middle and upper treetop regions. Usually it is observed in pairs, occasionally individually or in small groups of up to four individuals. The diet consists mainly of fruits.
Almost nothing is known about the reproductive biology of the Gould's Arassaris. The breeding season probably falls in the months May to September.
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
Single receipts
- ↑ Lantermann, p. 150
- ↑ Short et al., P. 351
- ↑ Short et al., P. 350
- ^ Lantermann, p. 151
- ↑ Short et al., P. 351
Web links
- Selenidera gouldii onthe IUCN 2013 Red List of Threatened Species . Listed by: BirdLife International, 2012. Retrieved October 23, 2013.