阿岛军舰鸟

分类位置

同属物种

白腹军舰鸟

Christmas Island Frigatebird

黑腹军舰鸟

Great Frigatebird

白斑军舰鸟

Lesser Frigatebird

麗色軍艦鳥

Magnificent Frigatebird

形态与习性

The Ascension frigatebird (Fregata aquila) is a seabird of the frigatebird family Fregatidae which breeds on Boatswain Bird Island and Ascension Island in the tropical Atlantic Ocean. The Ascension frigatebird is a large lightly built seabird with brownish-black plumage and a deeply forked tail. It has a wingspan of around 2 m (6.6 ft). The male has a striking red gular sac which he inflates to attract a mate. The female is slightly larger than the male and has a brown breast-band and sometimes