Lesser Black-backed Gull vs Aleutian Tern
Larus fuscus 比較対象 Onychoprion aleuticus
Side-by-Side Comparison
| 属性 | Lesser Black-backed Gull | Aleutian Tern |
|---|---|---|
| 学名 | Larus fuscus | Onychoprion aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 82.4 cm (32.4 in) | 52.4 cm (20.6 in) |
| 体重 | 841.3333333333334 g (29.68 oz) | 104.88 g (3.70 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 2-3 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Lesser Black-backed Gull
Vulnerable
Aleutian Tern
About These Birds
Lesser Black-backed Gull
北ヨーロッパで繁殖し、地中海・アフリカ沿岸で越冬するカモメ（体長52〜67cm）。白い体に暗灰色〜黒い背と翼が特徴で、セグロカモメより背が暗い。Larus fuscus（キアシセグロカモメ）は長距離を渡り、越冬地ではゴミ処理場や漁港でよく見られる。Laridae科。
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.