Black-tailed Gull vs Relict Gull
Larus crassirostris مقارنةً بـ Larus relictus
Side-by-Side Comparison
| السمة | Black-tailed Gull | Relict Gull |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Larus relictus |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 67,0 cm (26.4 in) |
| الوزن | 675,0 g (23.81 oz) | 516,75 g (18.23 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Black-tailed Gull
Vulnerable
Relict 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.
Relict Gull
Relict Gull, 44–46 cm, is a Vulnerable species breeding on remote saline lakes in Mongolia and northern China. Black hood with white eye-crescents, red bill, red legs. Very poorly known outside breeding season; winters on Yellow Sea coasts. Threatened by drought and wetland degradation.