Heermann's Gull vs Black Skimmer
Larus heermanni 比較対象 Rynchops niger
Side-by-Side Comparison
| 属性 | Heermann's Gull | Black Skimmer |
|---|---|---|
| 学名 | Larus heermanni | Rynchops niger |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 67.2 cm (26.5 in) | 73.1 cm (28.8 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 293.6666666666667 g (10.36 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-2 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Near Threatened
Heermann's Gull
Least Concern
Black Skimmer
About These Birds
Heermann's Gull
ヒアマンカモメはカリフォルニア沿岸と下バハ・カリフォルニアの島々に繁殖し、暗色の体と赤い嘴が特徴的なカモメである。
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.