Heermann's Gull vs Sooty Tern
Larus heermanni 对比 Onychoprion fuscatus
Side-by-Side Comparison
| 属性 | Heermann's Gull | Sooty Tern |
|---|---|---|
| 学名 | Larus heermanni | Onychoprion fuscatus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 56.1 cm (22.1 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 183.0 g (6.46 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Sooty 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。
Sooty Tern
Sooty Tern is a highly pelagic tern, 33–36 cm, wingspan 82–94 cm, breeding pantropically on oceanic islands. Jet-black above, white below, with a white forehead patch. Among the most aerial of birds; rarely lands on water. Piscivore; snaps fish and squid at the surface during mass prey events.