Christmas Island Frigatebird vs Ascension Frigatebird
Fregata andrewsi 对比 Fregata aquila
Side-by-Side Comparison
| 属性 | Christmas Island Frigatebird | Ascension Frigatebird |
|---|---|---|
| 学名 | Fregata andrewsi | Fregata aquila |
| 目 | Suliformes | Suliformes |
| 科 | Fregatidae | Fregatidae |
| 保护状况 | Vulnerable | Vulnerable |
| 体长 | — | — |
| 翼展 | 123.8 cm (48.7 in) | 113.7 cm (44.8 in) |
| 体重 | 1475.0 g (52.03 oz) | 1435.0 g (50.62 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Vulnerable
Christmas Island Frigatebird
Vulnerable
Ascension Frigatebird
About These Birds
Christmas Island Frigatebird
圣诞岛军舰鸟，体长89-100厘米。雄鸟全黑，喉囊红色；雌鸟腹部有特征性白色。仅在圣诞岛繁殖。极危，繁殖对不足3000对。
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.