Black-tailed Gull vs Iceland Gull
Larus crassirostris مقارنةً بـ Larus glaucoides
Side-by-Side Comparison
| السمة | Black-tailed Gull | Iceland Gull |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Larus glaucoides |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 79,2 cm (31.2 in) |
| الوزن | 675,0 g (23.81 oz) | 911,5 g (32.15 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Black-tailed Gull
Least Concern
Iceland 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.
Iceland Gull
Iceland Gull, 50–64 cm, breeds in Greenland and winters on both sides of the North Atlantic to Great Lakes. White wing tips (like Glaucous Gull but considerably smaller), pink orbital ring. Omnivore; scavenges at harbours and landfills in winter. Two subspecies often treated as separate species.