Black-tailed Gull vs Red-legged Kittiwake
Larus crassirostris 对比 Rissa brevirostris
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Red-legged Kittiwake |
|---|---|---|
| 学名 | Larus crassirostris | Rissa brevirostris |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 60.0 cm (23.6 in) |
| 体重 | 675.0 g (23.81 oz) | 401.6666666666667 g (14.17 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Vulnerable
Red-legged Kittiwake
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。
Red-legged Kittiwake
Red-legged Kittiwake, 35–39 cm, has a very restricted range on only four Aleutian and Pribilof Island colonies, with a world population under 200,000. Resembles Black-legged Kittiwake but with bright red legs, darker upperparts, and white underwing tips. Pelagic piscivore; Vulnerable and declining.