Grey-headed Gull vs Aleutian Tern
Larus cirrocephalus 对比 Onychoprion aleuticus
Side-by-Side Comparison
| 属性 | Grey-headed Gull | Aleutian Tern |
|---|---|---|
| 学名 | Larus cirrocephalus | Onychoprion aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 63.8 cm (25.1 in) | 52.4 cm (20.6 in) |
| 体重 | 357.5 g (12.61 oz) | 104.88 g (3.70 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Grey-headed Gull
Vulnerable
Aleutian Tern
About These Birds
Grey-headed Gull
灰头鸥广泛分布于非洲和南美洲的湖泊和河口，繁殖期灰色头巾为其特征。
Aleutian Tern
Aleutian Tern, 32–34 cm, breeds colonially in Alaska and Russian Far East, wintering in Southeast Asian waters — one of the most poorly tracked migrations among seabirds. Dark grey above, white below, black cap with white forehead. Piscivore; dives for small fish. Near Threatened.