Slaty-backed Gull vs Saunders's Gull
Larus schistisagus 比較対象 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | Slaty-backed Gull | Saunders's Gull |
|---|---|---|
| 学名 | Larus schistisagus | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | — | — |
| 翼開長 | 87.0 cm (34.3 in) | 54.8 cm (21.6 in) |
| 体重 | 1280.5 g (45.17 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-4 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Slaty-backed Gull
Vulnerable
Saunders's Gull
About These Birds
Slaty-backed Gull
オオセグロカモメは北太平洋の沿岸に広く繁殖し、暗い背中と翼が特徴的な大型のカモメで、日本でも普通に見られる。
Saunders's Gull
Saunders's Gull, 29–32 cm, is a Vulnerable gull breeding in coastal saltmarshes of China and Korea, wintering along East Asian coasts to Vietnam. Black hood in breeding plumage, white wing-tip mirrors. Feeds on crustaceans and invertebrates in tidal mudflats. Threatened by reclamation of Yellow Sea tidal flats.