Heermann's Gull vs Roseate Tern
Larus heermanni 对比 Sterna dougallii
Side-by-Side Comparison
| 属性 | Heermann's Gull | Roseate Tern |
|---|---|---|
| 学名 | Larus heermanni | Sterna dougallii |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 44.8 cm (17.6 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 114.33333333333333 g (4.03 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Roseate 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。
Roseate Tern
Roseate Tern, 33–36 cm, is a globally distributed but declining species, breeding on both sides of the Atlantic, Indian Ocean, and Pacific. Nearly white with a rosy flush to breast in spring, very long tail streamers, and mostly black bill. Plunge-dives for small fish. Endangered in parts of range.