Swallow-tailed Gull vs African Skimmer
Creagrus furcatus 对比 Rynchops flavirostris
Side-by-Side Comparison
| 属性 | Swallow-tailed Gull | African Skimmer |
|---|---|---|
| 学名 | Creagrus furcatus | Rynchops flavirostris |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 81.8 cm (32.2 in) | 66.4 cm (26.1 in) |
| 体重 | 695.0 g (24.52 oz) | 165.66666666666666 g (5.84 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Swallow-tailed Gull
Least Concern
African Skimmer
About These Birds
Swallow-tailed Gull
燕尾鸥（Creagrus furcatus）— 在加拉帕戈斯群岛繁殖的世界上唯一完全夜行性的鸥。燕尾状尾羽和红色眼圈为特征。在海上取食。
African Skimmer
African Skimmer: 36–42 cm, black-and-white skimmer with a long bright orange-yellow bill where the lower mandible is longer than the upper. Flies low over large rivers and lakes, cutting the water surface with the lower bill to catch fish. Resident and partial migrant along large rivers and lakes of sub-Saharan Africa. NT.