Black-tailed Gull vs Black-bellied Tern
Larus crassirostris 对比 Sterna acuticauda
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Black-bellied Tern |
|---|---|---|
| 学名 | Larus crassirostris | Sterna acuticauda |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Endangered |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 44.8 cm (17.6 in) |
| 体重 | 675.0 g (23.81 oz) | 159.5 g (5.63 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Endangered
Black-bellied Tern
About These Birds
Black-tailed Gull
黑尾鸥以日本为中心分布于东亚沿岸，以猫叫声为特征的大型鸥类。
Black-bellied Tern
Black-bellied Tern, 32–34 cm, is an Endangered freshwater tern of the Indian subcontinent, breeding on large river sandbars from Pakistan to Myanmar. Black belly contrasts with grey upperparts in breeding plumage; orange bill. Plunge-dives for small fish. Severely threatened by river modification.