Black-billed Gull vs Saunders's Gull
Larus bulleri 对比 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | Black-billed Gull | Saunders's Gull |
|---|---|---|
| 学名 | Larus bulleri | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Vulnerable |
| 体长 | — | — |
| 翼展 | 57.5 cm (22.6 in) | 54.8 cm (21.6 in) |
| 体重 | 216.83333333333334 g (7.65 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Black-billed Gull
Vulnerable
Saunders's Gull
About These Birds
Black-billed Gull
黑嘴鸥栖息于新西兰，是以黑色嘴为特征的特有鸥，在内陆河流也繁殖。
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.