Black-tailed Gull vs Indian Skimmer
Larus crassirostris 比較対象 Rynchops albicollis
Side-by-Side Comparison
| 属性 | Black-tailed Gull | Indian Skimmer |
|---|---|---|
| 学名 | Larus crassirostris | Rynchops albicollis |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Least Concern | Endangered |
| 体長 | — | — |
| 翼開長 | 72.8 cm (28.7 in) | 74.4 cm (29.3 in) |
| 体重 | 675.0 g (23.81 oz) | 164.0 g (5.78 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 2-3 | 2-5 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Black-tailed Gull
Endangered
Indian 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。
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.