Black-tailed Gull vs South American Tern
Larus crassirostris 对比 Sterna hirundinacea
Side-by-Side Comparison
| 属性 | Black-tailed Gull | South American Tern |
|---|---|---|
| 学名 | Larus crassirostris | Sterna hirundinacea |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 59.3 cm (23.3 in) |
| 体重 | 675.0 g (23.81 oz) | 190.25 g (6.71 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Least Concern
South American 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。
South American Tern
South American Tern, 40–44 cm, is the largest South American tern, breeding from Peru around Cape Horn to southeastern Brazil. Red bill, grey mantle, black cap. Pelagic and coastal piscivore; strong plunge-diver. Movements poorly known; some populations may migrate north along both coasts.