Aleutian Tern vs Sabine's Gull
Onychoprion aleuticus 比較対象 Xema sabini
Side-by-Side Comparison
| 属性 | Aleutian Tern | Sabine's Gull |
|---|---|---|
| 学名 | Onychoprion aleuticus | Xema sabini |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | — | — |
| 翼開長 | 52.4 cm (20.6 in) | 53.0 cm (20.9 in) |
| 体重 | 104.88 g (3.70 oz) | 182.16666666666666 g (6.43 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-4 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Vulnerable
Aleutian Tern
Least Concern
Sabine's Gull
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.
Sabine's Gull
北極圏で繁殖し、熱帯海域で越冬するカモメ（体長27〜32cm）。三角形の白・灰・黒の翼模様が特徴で、二股に分かれた尾が識別点。Xema sabini（サビンカモメ）は海洋性が強く、鳥類学的に興味深い三角形の翼模様をもつ唯一のカモメ。南太平洋や南大西洋で越冬する長距離渡り鳥。Laridae科。