Black-tailed Gull vs Great Black-backed Gull
Larus crassirostris مقارنةً بـ Larus marinus
Side-by-Side Comparison
| السمة | Black-tailed Gull | Great Black-backed Gull |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Larus marinus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 95,6 cm (37.6 in) |
| الوزن | 675,0 g (23.81 oz) | 1678,3333333333333 g (59.20 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Black-tailed Gull only
بلا
Great Black-backed Gull only
حالة الحفاظ
Least Concern
Black-tailed Gull
Least Concern
Great Black-backed 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.
Great Black-backed Gull
Great Black-backed Gull, 61–74 cm, wingspan 142–168 cm, is the world's largest gull, breeding along North Atlantic coasts. Jet-black mantle, white body, massive yellow bill. Dominant predator among seabirds; preys on seabird chicks, puffins, rabbits, as well as scavenging. Partially migratory.