Heermann's Gull vs Snowy-crowned Tern
Larus heermanni 对比 Sterna trudeaui
Side-by-Side Comparison
| 属性 | Heermann's Gull | Snowy-crowned Tern |
|---|---|---|
| 学名 | Larus heermanni | Sterna trudeaui |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 51.2 cm (20.2 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 149.75 g (5.28 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Snowy-crowned Tern
About These Birds
Heermann's Gull
赫尔曼鸥在加利福尼亚海岸和下加利福尼亚半岛岛屿繁殖，以暗色体色和红色嘴为特征。
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.