Atlantic White Tern vs Indian Skimmer
Gygis alba 对比 Rynchops albicollis
Side-by-Side Comparison
| 属性 | Atlantic White Tern | Indian Skimmer |
|---|---|---|
| 学名 | Gygis alba | Rynchops albicollis |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Endangered |
| 体长 | — | — |
| 翼展 | 50.4 cm (19.8 in) | 74.4 cm (29.3 in) |
| 体重 | 138.0 g (4.87 oz) | 164.0 g (5.78 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 2-5 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Atlantic White Tern
Endangered
Indian Skimmer
About These Birds
Atlantic White Tern
白燕鸥是分布于热带海洋的优美鸟类，全身纯白，眼大而深色，喙细长。独特之处在于直接将单枚卵产在裸露的树枝或岩石上，不筑巢。广泛分布于太平洋和印度洋的热带岛屿，以小型鱼类和甲壳类为食，飞行优雅灵活。
Indian Skimmer
Indian Skimmer: 38–43 cm, black-and-white skimmer with an orange-and-yellow bill and white collar. Resident on large sandy rivers of the Indian subcontinent. VU. Feeds by skimming river surface with protruding lower mandible to catch fish. Severely threatened by sand-mining, dam building, and human disturbance at nesting colonies.