Sabiá-branco - White thrush
Este é um sabiá-laranjeira (Turdus rufiventris) leucistico. O leucismo é uma condição genética que, devido a presença de um gene recessivo, faz com que animais com pelagem ou plumagem normalmente escura a tenham na coloração branca. Uma característica que permite diferenciar visualmente animais leucisticos de albinos é que os olhos do leucistico possuem a coloração normal enquanto que no albino a cor é geralmente vermelha. Também diferentemente do albinismo animais leucisticos não tem maior sensibilidade à luz solar. Esse indivíduo do vídeo procurava alimento em meio às folhas secas junto de outros sabiás-laranjeira.
This is a leucistic rufous-bellied thrush (Turdus rufiventris). Leucism is a genetic condition that, due to the presence of a recessive gene, causes animals that normally have dark fur or plumage to have them white instead. A characteristic that allows leucistic animals to be visually differentiated from albinos is that the eyes of leucistic animals have the normal coloration of the species, while in albinos the color is generally red. Also unlike albinism, leucistic animals do not have greater sensitivity to sunlight. This individual in the video was searching for food among the fallen leaves alongside other rufous-bellied thrushes.
Видео Sabiá-branco - White thrush канала Rpl72
This is a leucistic rufous-bellied thrush (Turdus rufiventris). Leucism is a genetic condition that, due to the presence of a recessive gene, causes animals that normally have dark fur or plumage to have them white instead. A characteristic that allows leucistic animals to be visually differentiated from albinos is that the eyes of leucistic animals have the normal coloration of the species, while in albinos the color is generally red. Also unlike albinism, leucistic animals do not have greater sensitivity to sunlight. This individual in the video was searching for food among the fallen leaves alongside other rufous-bellied thrushes.
Видео Sabiá-branco - White thrush канала Rpl72
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