Black-tailed Gull vs Chinese Crested Tern
Larus crassirostris مقارنةً بـ Thalasseus bernsteini
Side-by-Side Comparison
| السمة | Black-tailed Gull | Chinese Crested Tern |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Thalasseus bernsteini |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Critically Endangered |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 63,8 cm (25.1 in) |
| الوزن | 675,0 g (23.81 oz) | 280,0 g (9.88 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Black-tailed Gull
Critically Endangered
Chinese Crested Tern
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.
Chinese Crested Tern
Chinese Crested Tern is Critically Endangered, fewer than 50 individuals known. Breeding sites on small rocky islands off eastern China; winters in Southeast Asia. Orange bill with yellow tip, black crest. Extremely similar to Greater Crested Tern; often overlooked in mixed colonies. Piscivore; plunge-dives.