White-winged Tern vs Saunders's Gull
Chlidonias leucopterus 对比 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | White-winged Tern | Saunders's Gull |
|---|---|---|
| 学名 | Chlidonias leucopterus | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Vulnerable |
| 体长 | — | — |
| 翼展 | 41.6 cm (16.4 in) | 54.8 cm (21.6 in) |
| 体重 | 60.5 g (2.13 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
White-winged Tern
Vulnerable
Saunders's Gull
About These Birds
White-winged Tern
白翅浮鸥 (Chlidonias leucopterus)，体长约20–24厘米。繁殖期头体黑色，翅膀和尾部白色，形成醒目的黑白对比；冬羽头部和下体白色，上体灰色。繁殖于欧亚大陆湿地，冬季迁至非洲和东南亚。以水生昆虫和小型鱼类为食。
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.