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The giant antpitta (''Grallaria gigantea'') is a perching bird species in the antpitta family (Grallariidae). Rare and somewhat enigmatic, is known only from Colombia and Ecuador. It is presumably a close relative of the similar undulated antpitta, ''G. squamigera'', which occurs to the south of ''G. gigantea''. The giant antpitta has three subspecies, one of which might be extinct.〔BLI ()〕 ==Description== ''G. gigantea'' is, as its name suggests, a huge antpitta. Length ranges from and weight is up to , which makes it easily the heaviest of all tracheophone suboscine birds – its nearest rival, the chestnut-throated huet-huet, is not known to exceed . Its back, wings, and the stubby tail are dusky olive-brown. The top of the head is pale to medium grey, running down to the neck. The remaining plumage is deep rufous-brown. The throat and breast feathers are black-edged, resulting in a dark barring in these regions. The bill is dark, strong and heavy; the eyes are likewise dark, while the legs and feet are grey.〔BLI ()〕 The song consists of low-pitched fast trills, about 14-21 notes per second. These are maintained several seconds, during which they rise in pitch and become louder. Trills are repeated after a pause of a few to about a dozen seconds, which varies irregularly throughout the length of the song. 〔 The undulated antpitta (''G. squamigera'') is a bit smaller, with a pale hue to the malar region and a yellower belly. Its song is hard to distinguish, but rather than simply breaking off after a time, it ends with some additional trills, separated by pauses of increasing length.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「giant antpitta」の詳細全文を読む スポンサード リンク
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