Black-tailed Gull vs Black-legged Kittiwake
Larus crassirostris so với Rissa tridactyla
Side-by-Side Comparison
| Thuộc Tính | Black-tailed Gull | Black-legged Kittiwake |
|---|---|---|
| Tên Khoa Học | Larus crassirostris | Rissa tridactyla |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Laridae | Laridae |
| Tình Trạng Bảo Tồn | Least Concern | Vulnerable |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 72,8 cm (28.7 in) | 60,2 cm (23.7 in) |
| Khối Lượng | 675,0 g (23.81 oz) | 439,3333333333333 g (15.50 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Black-tailed Gull
Vulnerable
Black-legged Kittiwake
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-legged Kittiwake
Black-legged Kittiwake, 38–40 cm, wingspan 91–105 cm, is the most abundant gull globally, with millions breeding on cliff ledges across the North Atlantic and Pacific. White body, grey mantle, solid black wing tips, yellow bill, black legs. Pelagic piscivore outside breeding. Vulnerable; declining.