Christmas Island Frigatebird vs Lesser Frigatebird
Fregata andrewsi 比較対象 Fregata ariel
Side-by-Side Comparison
| 属性 | Christmas Island Frigatebird | Lesser Frigatebird |
|---|---|---|
| 学名 | Fregata andrewsi | Fregata ariel |
| 目 | Suliformes | Suliformes |
| 科 | Fregatidae | Fregatidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 123.8 cm (48.7 in) | 102.6 cm (40.4 in) |
| 体重 | 1475.0 g (52.03 oz) | 803.75 g (28.35 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Christmas Island Frigatebird
Least Concern
Lesser Frigatebird
About These Birds
Christmas Island Frigatebird
クリスマス島に生息するグンカンドリで、3000ペア未満の絶滅危惧種IA類に指定されている。
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.