Black-tailed Gull vs Black-naped Tern
Larus crassirostris 对比 Sterna sumatrana
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Black-naped Tern |
|---|---|---|
| 学名 | Larus crassirostris | Sterna sumatrana |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 72.8 cm (28.7 in) | 43.1 cm (17.0 in) |
| 体重 | 675.0 g (23.81 oz) | 103.75 g (3.66 oz) |
| 食性 | -- | -- |
| 产卵数 | 2-3 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black-tailed Gull
Least Concern
Black-naped Tern
About These Birds
Black-tailed Gull
黑尾鸥以日本为中心分布于东亚沿岸，以猫叫声为特征的大型鸥类。
Black-naped Tern
Black-naped Tern, 30–32 cm, breeds on tropical Indo-Pacific coral islands from the Maldives to Polynesia. White overall with a narrow black nape band connecting the black lores — a delicate, elegant pattern. Piscivore; surface-dips and shallow dives in clear tropical waters over reefs.