Black Tern vs African Skimmer
Chlidonias niger 对比 Rynchops flavirostris
Side-by-Side Comparison
| 属性 | Black Tern | African Skimmer |
|---|---|---|
| 学名 | Chlidonias niger | Rynchops flavirostris |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 40.3 cm (15.9 in) | 66.4 cm (26.1 in) |
| 体重 | 73.15 g (2.58 oz) | 165.66666666666666 g (5.84 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-5 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black Tern
Least Concern
African Skimmer
About These Birds
Black Tern
黑浮鸥 (Chlidonias niger)，体长约22–24厘米。繁殖期头体黑色，翅和尾灰色；冬羽上体灰色，下体白色，头顶具黑色斑块。繁殖于北美和欧亚大陆的内陆湿地，冬季迁至热带海洋。以昆虫、小鱼和甲壳动物为食。
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.