Christmas Island Frigatebird vs Lesser Frigatebird
Fregata andrewsi so với Fregata ariel
Side-by-Side Comparison
| Thuộc Tính | Christmas Island Frigatebird | Lesser Frigatebird |
|---|---|---|
| Tên Khoa Học | Fregata andrewsi | Fregata ariel |
| Bộ | Suliformes | Suliformes |
| Họ | Fregatidae | Fregatidae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 123,8 cm (48.7 in) | 102,6 cm (40.4 in) |
| Khối Lượng | 1475,0 g (52.03 oz) | 803,75 g (28.35 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Christmas Island Frigatebird only
Lesser Frigatebird only
Tình Trạng Bảo Tồn
Vulnerable
Christmas Island Frigatebird
Least Concern
Lesser Frigatebird
About These Birds
Christmas Island Frigatebird
89–100 cm. Male all black with red gular pouch; female has distinctive white belly patch extending under wings. Breeds only on Christmas Island (Indian Ocean). Critically Endangered; fewer than 3,000 pairs threatened by mining, habitat loss, and introduced yellow crazy ants. Kleptoparasitic.
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.