Ascension Frigatebird vs Lesser Frigatebird
Fregata aquila 比較対象 Fregata ariel
Side-by-Side Comparison
| 属性 | Ascension Frigatebird | Lesser Frigatebird |
|---|---|---|
| 学名 | Fregata aquila | Fregata ariel |
| 目 | Suliformes | Suliformes |
| 科 | Fregatidae | Fregatidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 113.7 cm (44.8 in) | 102.6 cm (40.4 in) |
| 体重 | 1435.0 g (50.62 oz) | 803.75 g (28.35 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Ascension Frigatebird
Least Concern
Lesser Frigatebird
About These Birds
Ascension Frigatebird
89–96 cm, wingspan 196–200 cm. All-black male; female has white breast and reddish feet. Breeds only on Ascension Island; Vulnerable with fewer than 10,000 birds. Males inflate brilliant red gular pouch to attract mates. Kleptoparasitic; steals fish from other seabirds.
Lesser Frigatebird
71–81 cm, wingspan 175–193 cm. Smallest frigatebird; male all-black with white axillary spurs; female has white breast and spurs. Breeds Indian Ocean and western Pacific tropical islands. Kleptoparasitic and pursuit-feeds on flyingfish; brilliant red gular sac inflated at display.