Aleutian Tern vs West African Crested Tern
Onychoprion aleuticus 比較対象 Thalasseus albididorsalis
Side-by-Side Comparison
| 属性 | Aleutian Tern | West African Crested Tern |
|---|---|---|
| 学名 | Onychoprion aleuticus | Thalasseus albididorsalis |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Vulnerable | Not Evaluated |
| 体長 | — | — |
| 翼開長 | 52.4 cm (20.6 in) | — |
| 体重 | 104.88 g (3.70 oz) | 380.0 g (13.40 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Aleutian Tern
Not Evaluated
West African Crested Tern
About These Birds
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.
West African Crested Tern
西アフリカオグロアジサシは西アフリカの海岸で繁殖するアジサシの一種です。白い背部が名前の由来です。