Black-tailed Gull vs Elegant Tern
Larus crassirostris 对比 Thalasseus elegans
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Elegant Tern |
|---|---|---|
| 学名 | Larus crassirostris | Thalasseus elegans |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 59.3 cm (23.3 in) |
| 体重 | 675.0 g (23.81 oz) | 236.16666666666666 g (8.33 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Near Threatened
Elegant 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。
Elegant Tern
Elegant Tern, 39–43 cm, breeds in a few large colonies on islands off Baja California and winters along Pacific coasts of South America. Long, drooping orange bill, shaggy black crest. Piscivore; dependent on Northern Anchovy and Pacific Sardine. Near Threatened; highly colonial breeder.