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Walden's hornbill
The Walden's hornbill (''Aceros waldeni''), also known as the Visayan wrinkled hornbill, rufous-headed hornbill or writhed-billed hornbill, is a critically endangered species of hornbill living in the rainforests on the islands of Negros and Panay in the Philippines. It is closely related to the writhed hornbill, but can be recognized by the yellow throat and ocular skin in the male, and the blue throat and ocular skin in the female (both throat and ocular skin are deep orange or red in both sexes of the writhed hornbill). Its binomial name commemorates the Scottish ornithologist Viscount Walden.
== Habitat and behaviour ==
Rainforests with abundant fruit-bearing trees are the natural habitat of these birds. The Walden's hornbills live in small groups and are noisy. The Walden's hornbills use natural or carved-out hollows in tree trunks for its nest. As other hornbills, they reproduce very slowly. As lack of appropriate nesting sites is a problem, nest boxes are being attached to tree trunks in certain reserves.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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