Black-tailed Gull vs Black-legged Kittiwake
Larus crassirostris เปรียบเทียบกับ Rissa tridactyla
Side-by-Side Comparison
| คุณสมบัติ | Black-tailed Gull | Black-legged Kittiwake |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus crassirostris | Rissa tridactyla |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Least Concern | Vulnerable |
| ความยาว | — | — |
| กว้างปีก | 72.8 cm (28.7 in) | 60.2 cm (23.7 in) |
| น้ำหนัก | 675.0 g (23.81 oz) | 439.3333333333333 g (15.50 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
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.