|
The Tasmanian wedge-tailed eagle (''Aquila audax fleayi'') is an endangered bird of Tasmania. It is a subspecies of the more common wedge-tailed eagle. ==Description== ''Aquila'' is a genus of large eagles that have long, rounded wings with deeply emarginated tips. They also have very strong legs and claws and ear-shaped nostrils. The subspecies ''A. a. fleayi'' is the largest of the wedge-tailed eagles. ''A. a. fleayi'' has a total body length between 100 and 110 cm with wingspans of 1.9–2.3 m, and weighs 3.5–5.5 kg. Females are larger (longer with a much larger beak) and are about 15% heavier than the males. They become sexually mature at 4–6 years of age. Fledged juveniles are tawny brown with a blond nape and dark tail and flight feathers. The plumage darkens after many months until it is almost black. The bases of adults' primary feathers are pale silver, giving a 'window' appearance when viewed from below. Males are sooty brown with a reddish-golden nape. Outside the breeding season, Tasmanian wedge-tailed eagles are usually quiet, although they produce a range of specific, rather gentle calls. They are usually found in pairs or as a family. During the breeding season, aerial displays are a common sight. 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「Tasmanian wedge-tailed eagle」の詳細全文を読む スポンサード リンク
|