Black-tailed Gull vs Snowy-crowned Tern
Larus crassirostris 比較対象 Sterna trudeaui
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Snowy-crowned Tern |
|---|---|---|
| 学名 | Larus crassirostris | Sterna trudeaui |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 72.8 cm (28.7 in) | 51.2 cm (20.2 in) |
| 体重 | 675.0 g (23.81 oz) | 149.75 g (5.28 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 2-3 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Black-tailed Gull
Least Concern
Snowy-crowned Tern
About These Birds
Black-tailed Gull
ウミネコは日本を中心とした東アジアの沿岸に分布し、猫のような鳴き声が特徴的な大型のカモメである。
Snowy-crowned Tern
Snowy-crowned Tern, 33–35 cm, breeds along the Atlantic coasts of Argentina and Uruguay, wintering north to southern Brazil. White crown with black post-ocular mark (unlike a full black cap), yellow-tipped red bill. Coastal and estuarine piscivore; plunge-dives for small fish.