Black-tailed Gull vs Arctic Herring Gull
Larus crassirostris 对比 Larus smithsonianus
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Arctic Herring Gull |
|---|---|---|
| 学名 | Larus crassirostris | Larus smithsonianus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 85.9 cm (33.8 in) |
| 体重 | 675.0 g (23.81 oz) | 1108.0 g (39.08 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Least Concern
Arctic Herring Gull
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。
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.