Heermann's Gull vs Greater Crested Tern
Larus heermanni 对比 Thalasseus bergii
Side-by-Side Comparison
| 属性 | Heermann's Gull | Greater Crested Tern |
|---|---|---|
| 学名 | Larus heermanni | Thalasseus bergii |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 71.6 cm (28.2 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 367.75 g (12.97 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1-3 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Greater Crested Tern
About These Birds
Heermann's Gull
赫尔曼鸥在加利福尼亚海岸和下加利福尼亚半岛岛屿繁殖，以暗色体色和红色嘴为特征。
Greater Crested Tern
Greater Crested Tern, 43–48 cm, is the largest crested tern of the Indo-Pacific, breeding from South Africa to Japan and Australia. Yellow-green bill, prominent black crest, grey back. Colonial breeder on sand islands; plunge-dives for fish. Partially migratory; disperses across Indian and Pacific Oceans.