Aleutian Tern vs Lesser Crested Tern
Onychoprion aleuticus 比較対象 Thalasseus bengalensis
Side-by-Side Comparison
| 属性 | Aleutian Tern | Lesser Crested Tern |
|---|---|---|
| 学名 | Onychoprion aleuticus | Thalasseus bengalensis |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.4 cm (20.6 in) | 58.6 cm (23.1 in) |
| 体重 | 104.88 g (3.70 oz) | 212.25 g (7.49 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Aleutian Tern
Least Concern
Lesser 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.
Lesser Crested Tern
ヒメアジサシはインド洋と太平洋の熱帯地域に広く分布する中型のアジサシです。細い黄色い嘴と黒い冠羽が特徴です。