Caspian Tern vs Black-tailed Gull
Hydroprogne caspia 对比 Larus crassirostris
Side-by-Side Comparison
| 属性 | Caspian Tern | Black-tailed Gull |
|---|---|---|
| 学名 | Hydroprogne caspia | Larus crassirostris |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 82.1 cm (32.3 in) | 72.8 cm (28.7 in) |
| 体重 | 656.0 g (23.14 oz) | 675.0 g (23.81 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Caspian Tern
Least Concern
Black-tailed Gull
About These Birds
Caspian Tern
Caspian Tern is the world's largest tern, 48–56 cm, wingspan 127–140 cm, with a massive blood-red bill. Found on all continents except Antarctica. Plunge-dives powerfully for large fish in coastal and freshwater habitats. Migratory; northern populations winter in the tropics. Loud, rasping call.
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。