Topazio Vermelho

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Topázio-vermelho (Topaza pella, Linnaeus, 1758)

Hummingbirds

O topázio-vermelho é talvez uma das mais espetaculares aves, em termos de plumagem. Uma aura de mistério envolve a espécie por freqüentar os arredores de córregos na mata, pouco saindo para as áreas perturbadas por derrubada ou vegetação secundária. Sua biologia é pouco conhecida. Apresenta a frente da cabeça e o contorno da garganta pretos mas a garganta é ouro-alaranjada iridescente, alto do dorso e peito vermelho-vinho escuro; asas marrom-avermelhadas escuras nas extremidades e os pés marrom-amarelados. As penas centrais da cauda são verde-cobre passando a negro-esverdeadas, bem mais longas que as demais penas e cruzando no centro. A fêmea é mais apagada, verde-bronze-dourada, com mancha avermelhada na garganta e levemente menor que o macho. Ocorre desde a Venezuela, as Guianas e norte do Rio Amazonas, Pará, Rio Branco, Roraima e Amapá. O ninho em forma de taça é, em geral, construído sobre água, rios ou pequenos riachos dentro da mata e fixado com teias de aranha sobre pequenos galhos secos. Como a maioria das aves, éameaçado pelo desmatamento e conseqüente desaparecimento de seu habitat, ao mesmo tempo que a depredação de seus ninhos e a captura de adultos podem levar a espécie à extinção.

YOSHICA ONIKI (Bióloga) Departamento de Zoologia, UNESP Universidade Estadual Paulista


 

Crimson Topaz (Topaza pella Linnaeus, 1758)

The Crimson Topaz is perhaps one of the most spectacular birds in terms of plumage. An aura of mystery involves the species, which frequents the vicinity of streams in the forests and rarely goes out to areas disturbed by cutting or into secondary vegetation. Their biology is mostly unknown. The forehead and the border and the throat are black but the throat itself is iridescent golden-orange; it has a dark wine-red upper back and breast; the wings have dark red-brown edges; the feet are yellow-brown. The central tail feathers vary from copper-green to greenish-black and, longer than the other feathers, cross each other in the center. The female is duller -golden-bronze green with a reddish spot on the throat -and slightly smaller than the male. They occur in Venezuela, the Gulanas and north of the Amazon River in Pará, Rio Branco, Roraima and Amapá. The cup-shaped nest is often built above the water of rivers or small creeks, inside the forest, fixed with spider webs on small dead branches. As in many other birds they are endangered locally due to forest destruction and consequent disappearance of their habitat. Depredation of their nests and capturing of adults may reduce the species to local extinction wherever man enters.

YOSHIKA ONIKI (Biologist) Department of Zoology São Paulo State University - UNESP

 


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Last updated: 03/29/10.