Black-tailed Gull vs Black Skimmer
Larus crassirostris 比較対象 Rynchops niger
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Black Skimmer |
|---|---|---|
| 学名 | Larus crassirostris | Rynchops niger |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 72.8 cm (28.7 in) | 73.1 cm (28.8 in) |
| 体重 | 675.0 g (23.81 oz) | 293.6666666666667 g (10.36 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 2-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Black-tailed Gull
Least Concern
Black Skimmer
About These Birds
Black-tailed Gull
ウミネコは日本を中心とした東アジアの沿岸に分布し、猫のような鳴き声が特徴的な大型のカモメである。
Black Skimmer
Black Skimmer: 40–50 cm, the largest skimmer with jet black upperparts, white underparts, and an outsized red-and-black bill with protruding lower mandible. Inhabits large rivers, estuaries, and coastal lagoons of North and South America. Feeds at dawn and dusk by skimming water surface. Nests colonially on sandy beaches. Partly migratory.