Black-tailed Gull vs Arctic Herring Gull
Larus crassirostris مقارنةً بـ Larus smithsonianus
Side-by-Side Comparison
| السمة | Black-tailed Gull | Arctic Herring Gull |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Larus smithsonianus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 85,9 cm (33.8 in) |
| الوزن | 675,0 g (23.81 oz) | 1108,0 g (39.08 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
الموائل المشتركة
Black-tailed Gull only
بلا
Arctic Herring Gull only
حالة الحفاظ
Least Concern
Black-tailed Gull
Least Concern
Arctic Herring 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.
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.