African Skimmer vs Snowy-crowned Tern
Rynchops flavirostris 对比 Sterna trudeaui
Side-by-Side Comparison
| 属性 | African Skimmer | Snowy-crowned Tern |
|---|---|---|
| 学名 | Rynchops flavirostris | Sterna trudeaui |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 66.4 cm (26.1 in) | 51.2 cm (20.2 in) |
| 体重 | 165.66666666666666 g (5.84 oz) | 149.75 g (5.28 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-5 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
African Skimmer
Least Concern
Snowy-crowned Tern
About These Birds
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.
Snowy-crowned Tern
Snowy-crowned Tern, 33–35 cm, breeds along the Atlantic coasts of Argentina and Uruguay, wintering north to southern Brazil. White crown with black post-ocular mark (unlike a full black cap), yellow-tipped red bill. Coastal and estuarine piscivore; plunge-dives for small fish.