Double banded arassari
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Double- banded arassari ( Pteroglossus pluricinctus ) |
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| Pteroglossus pluricinctus | ||||||||||
| Gould , 1835 |
The double- banded arassari ( Pteroglossus pluricinctus ) is a species of bird in the toucan family. It occurs exclusively in South America and is a very strikingly colored representative of the genus Schwarzarassaris , which can hardly be confused with any other species. It bears its name because there are two black ribbons on the otherwise yellow and red underside of the body. No subspecies are distinguished.
Appearance
The body length of adult double-banded arassaris is 43 to 45 centimeters. The males of the double-banded arassaris reach a wing length of 14.6 to 16.5 centimeters. The tail has a length of 15 to 17.2 centimeters. The beak is between 11.1 and 13.2 inches long. Females have similar body dimensions, but their beak tends to be slightly shorter, measuring 10.0 to 11.5 centimeters. The weight of both sexes varies between 215 and 302 grams.
Adult males have a blue-black head, only the ear covers are chestnut colored. The upper back and throat are also feathered in black. The rest of the top of the body is dark green, with individual feathers lined with blue. The body is bright red, the under tail-coverts dark green. The stepped tail is greenish black with a bronze tinge. On the underside of the body there is a yellow chest band on the front chest, which is occasionally lined with red towards the black throat. It is bordered by a wide black band, followed by another, even wider yellow band, as well as a black and a red band. The thighs are chestnut colored with little yellow feather tips. Females are similarly feathered, but the auburn ear covers are smaller or even absent. They also have a red border below the black throat color. Young birds are similar to adult birds, but are a little more dull in color.
The beak is long and curved, the upper beak ends in a point. The upper beak is black with a wide yellow stripe that extends to the tip. The base of the beak is lined with white. The lower beak is black with a white border at the base. The featherless facial skin is bright blue, blue-green or greenish. The eye is creamy white to yellowish. In most individuals it is light yellow. The legs and feet are olive colored.
It can be confused with the black-throated macaw , which has a similarly colored beak. The drawing on the underside of the body clearly identifies the double-banded arassari.
Distribution area
The double-banded arassari is found in forests of the lowlands along the eastern side of the Andes. The distribution area extends from northeast Colombia over the southeast to the east of Ecuador and the northeast of Peru . It also occurs in the Brazilian Amazon region and is represented on the upper reaches of the Japurá and in the middle of the Rio Negros . It also colonizes western Venezuela and occurs on the upper reaches of the Orinoco . The extreme southeast of Bolivia also belongs to the distribution area . In the southeast of Venezuela it occurs up to an altitude of 900 meters. In Colombia it is observed up to 580 meters above sea level. In Peru it usually occurs below 500 meters of altitude and in Ecuador below 735 meters of altitude.
Its habitat has not been adequately investigated. It inhabits mostly moist tropical forests, in the Várzea it is rare.
Way of life
The double-banded arassari is one of the least explored Arassari species. Neither the clutch size nor the incubation period are known. Most of the birds found in the stomach were fruits and occasionally also insects.
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
Web link
- Pteroglossus pluricinctus in the Red List of Threatened Species of the IUCN 2013.1. Listed by: BirdLife International, 2012. Retrieved October 23, 2013.