White-necked bearded bird
| White-necked bearded bird | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
White-naped bearded bird ( Capito squamatus ) |
||||||||||
| Systematics | ||||||||||
|
||||||||||
| Scientific name | ||||||||||
| Capito squamatus | ||||||||||
| Salvin , 1876 |
The orange-fronted barbet ( Capito squamatus ) is a bird art from the family of American barbets. The species occurs only in a small area in northwestern South America. No subspecies are distinguished. The IUCN classifies the white-naped bearded bird as slightly threatened ( near threatened ). It assumes that the population is declining due to habitat loss.
Appearance
The white-naped bearded bird is a compactly built small bird with a short tail and a powerful beak. The males have a wing length of 8.1 to 8.8 centimeters, the tail measures 4.6 to 5.6 centimeters and the beak length is 2.0 to 2.3 centimeters. Females have similar body measurements.
The males of the white-naped bearded birds have an orange to red forehead and a white skull. This white color extends into the neck and has given the species its German name. The rest of the upper body is black. The control feathers are black-brown, the two central feathers are shiny black-blue. The chin and throat are white, but the feathers can have pale yellow tips. The chest is pale yellow in most individuals. The yellow extends to the sides of the body and, in some individuals, to the flanks and abdomen. In the remaining individuals, the flanks and belly are white to yellow-white. There are very small black spots on the flanks. The under tail-coverts are white to yellow-white. The beak is gray, blue-gray or silver with a black tip. The eyes are brown to red. Legs and feet are green-blue, green-gray or silvery-green.
White-naped bearded birds exhibit a sexual dimorphism . The forehead color is paler in the females, but the most striking distinguishing feature is the black chin, a black throat and the black breast. The rest of the plumage resembles that of the male.
The distribution area overlaps in places with that of the teardrop-bearded bird and that of the five-color bearded bird . However, both species lack the orange to red forehead that is characteristic of the white-naped bearded bird.
Distribution area
The distribution area of the white-naped bearded bird stretches west of the Andes from the province of Nariño in southwest Colombia over western Ecuador to El Oro in southern Ecuador. The species occurs there in lowlands and at the foot of mountains up to altitudes of 1500 meters.
Habitat and way of life
The habitat of the white-naped bearded bird includes wet to very wet forests, forest edges as well as agricultural areas and pastures with fruit-bearing trees. Basically, this species stays in pairs in the treetop regions and mostly looks for food at heights between five and 25 meters. Occasionally, however, the birds also use lower fruit-bearing shrubs for their foraging. Sometimes they can be seen in flocks with other bird species. They show a clear hatred behavior towards potential predators like snakes .
The reproductive biology of this species is largely unknown. White-naped bearded birds presumably breed between July and September.
supporting documents
literature
- Lester L. Short, Jennifer FM Horne: Toucans, Barbets and Honeyguides - Ramphastidae, Capitonidae and Indicatoridae. Oxford University Press, Oxford 2001, ISBN 0-19-854666-1 .
Individual evidence
- ↑ BirdLife factsheet on the White-necked Bearded Bird , accessed on January 23, 2011
- ↑ Short et al., P. 292.
- ↑ Short et al., P. 291.
- ↑ Short et al., P. 292.
- ↑ Short et al., P. 292.
- ↑ Short et al., P. 293.
Web links
- Capito squamatus inthe IUCN 2013 Red List of Endangered Species . Listed by: BirdLife International, 2012. Retrieved September 5, 2013.