Red-legged Kittiwake vs Saunders's Gull
Rissa brevirostris 对比 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | Red-legged Kittiwake | Saunders's Gull |
|---|---|---|
| 学名 | Rissa brevirostris | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Vulnerable | Vulnerable |
| 体长 | — | — |
| 翼展 | 60.0 cm (23.6 in) | 54.8 cm (21.6 in) |
| 体重 | 401.6666666666667 g (14.17 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Vulnerable
Red-legged Kittiwake
Vulnerable
Saunders's Gull
About These Birds
Red-legged Kittiwake
Red-legged Kittiwake, 35–39 cm, has a very restricted range on only four Aleutian and Pribilof Island colonies, with a world population under 200,000. Resembles Black-legged Kittiwake but with bright red legs, darker upperparts, and white underwing tips. Pelagic piscivore; Vulnerable and declining.
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.