Black-tailed Gull vs Sooty Tern
Larus crassirostris so với Onychoprion fuscatus
Side-by-Side Comparison
| Thuộc Tính | Black-tailed Gull | Sooty Tern |
|---|---|---|
| Tên Khoa Học | Larus crassirostris | Onychoprion fuscatus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 72,8 cm (28.7 in) | 56,1 cm (22.1 in) |
| Khối Lượng | 675,0 g (23.81 oz) | 183,0 g (6.46 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Black-tailed Gull
Least Concern
Sooty Tern
About These Birds
Black-tailed Gull
Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.
Sooty Tern
Sooty Tern is a highly pelagic tern, 33–36 cm, wingspan 82–94 cm, breeding pantropically on oceanic islands. Jet-black above, white below, with a white forehead patch. Among the most aerial of birds; rarely lands on water. Piscivore; snaps fish and squid at the surface during mass prey events.