Heermann's Gull vs Black-bellied Tern
Larus heermanni 比較対象 Sterna acuticauda
Side-by-Side Comparison
| 属性 | Heermann's Gull | Black-bellied Tern |
|---|---|---|
| 学名 | Larus heermanni | Sterna acuticauda |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保全状況 | Near Threatened | Endangered |
| 体長 | — | — |
| 翼開長 | 67.2 cm (26.5 in) | 44.8 cm (17.6 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 159.5 g (5.63 oz) |
| 食性 | -- | -- |
| 一腹卵数 | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Near Threatened
Heermann's Gull
Endangered
Black-bellied 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。
Black-bellied Tern
Black-bellied Tern, 32–34 cm, is an Endangered freshwater tern of the Indian subcontinent, breeding on large river sandbars from Pakistan to Myanmar. Black belly contrasts with grey upperparts in breeding plumage; orange bill. Plunge-dives for small fish. Severely threatened by river modification.