Black-fronted Tern vs Saunders's Gull
Chlidonias albostriatus 对比 Saundersilarus saundersi
Side-by-Side Comparison
| 属性 | Black-fronted Tern | Saunders's Gull |
|---|---|---|
| 学名 | Chlidonias albostriatus | Saundersilarus saundersi |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Endangered | Vulnerable |
| 体长 | — | — |
| 翼展 | 47.9 cm (18.9 in) | 54.8 cm (21.6 in) |
| 体重 | 93.0 g (3.28 oz) | 195.0 g (6.88 oz) |
| 食性 | -- | -- |
| 产卵数 | 2 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Endangered
Black-fronted Tern
Vulnerable
Saunders's Gull
About These Birds
Black-fronted Tern
新西兰燕鸥 (Chlidonias albostriatus)，体长约30厘米。繁殖期头顶黑色，上体灰色，下体浅色，翅膀深色，嘴和腿红色；冬羽头部白色，仅有黑色冠斑。特有于新西兰内陆河流。以鱼类和昆虫为食。为濒危物种。
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.