Black-tailed Gull vs Dolphin Gull
Larus crassirostris so với Larus scoresbii
Side-by-Side Comparison
| Thuộc Tính | Black-tailed Gull | Dolphin Gull |
|---|---|---|
| Tên Khoa Học | Larus crassirostris | Larus scoresbii |
| 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) | 64,6 cm (25.4 in) |
| Khối Lượng | 675,0 g (23.81 oz) | 519,0 g (18.31 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Black-tailed Gull
Least Concern
Dolphin Gull
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.
Dolphin Gull
Dolphin Gull, 42–45 cm, is restricted to the coasts of southern South America, the Falkland Islands, and Tierra del Fuego. Adults have a blood-red bill and legs; plumage varies from grey to brownish with age. Scavenges on marine mammal placentas, carrion, and penguin colonies. Resident.