Black-tailed Gull vs Black-headed Gull
Larus crassirostris so với Larus ridibundus
Side-by-Side Comparison
| Thuộc Tính | Black-tailed Gull | Black-headed Gull |
|---|---|---|
| Tên Khoa Học | Larus crassirostris | Larus ridibundus |
| 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) | 58,2 cm (22.9 in) |
| Khối Lượng | 675,0 g (23.81 oz) | 261,0 g (9.21 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Black-tailed Gull only
Không
Black-headed Gull only
Tình Trạng Bảo Tồn
Least Concern
Black-tailed Gull
Least Concern
Black-headed 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.
Black-headed Gull
Black-headed Gull, 38–44 cm, is one of Europe's commonest gulls, breeding across the Palearctic on wetlands and coasts. Chocolate-brown (not black) hood in summer, lost in winter leaving dark ear-spot. Omnivore; follows ploughs, scavenges in cities, dips for invertebrates. Migratory.