Heermann's Gull vs Forster's Tern
Larus heermanni 比較対象 Sterna forsteri
Side-by-Side Comparison
| 属性 | Heermann's Gull | Forster's Tern |
|---|---|---|
| 学名 | Larus heermanni | Sterna forsteri |
| 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) | 50.5 cm (19.9 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 151.25 g (5.34 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Near Threatened
Heermann's Gull
Least Concern
Forster's Tern
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。
Forster's Tern
Forster's Tern, 33–36 cm, breeds in interior North American marshes and winters along both US coasts and into Mexico. Distinctive frosted silver upperparts and orange-based bill. In non-breeding plumage, shows a black eye-mask. Piscivore; hovers and plunge-dives in coastal bays and lagoons.