Heermann's Gull vs Least Tern
Larus heermanni 对比 Sternula antillarum
Side-by-Side Comparison
| 属性 | Heermann's Gull | Least Tern |
|---|---|---|
| 学名 | Larus heermanni | Sternula antillarum |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 33.0 cm (13.0 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 46.75 g (1.65 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Least 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。
Least Tern
Least Tern is North America's smallest tern, 22–24 cm, breeding on sandy beaches and river sandbars from the Atlantic coast to the interior. Endangered (interior subspecies). Yellow bill, white forehead, grey upperparts. Hovers and plunge-dives for small fish in coastal and riverine habitats.