Heermann's Gull vs Royal Tern
Larus heermanni 对比 Thalasseus maximus
Side-by-Side Comparison
| 属性 | Heermann's Gull | Royal Tern |
|---|---|---|
| 学名 | Larus heermanni | Thalasseus maximus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Laridae | Laridae |
| 保护状况 | Near Threatened | Least Concern |
| 体长 | — | — |
| 翼展 | 67.2 cm (26.5 in) | 72.7 cm (28.6 in) |
| 体重 | 448.26666666666665 g (15.81 oz) | 402.3333333333333 g (14.19 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Near Threatened
Heermann's Gull
Least Concern
Royal 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。
Royal Tern
Royal Tern, 45–50 cm, is a large, powerful tern of American and West African coasts. Orange bill, shaggy black crest (full only briefly in spring), pale grey mantle. Piscivore; plunge-dives from 10 m for mullet and menhaden. Nests in dense colonies; often seen loafing on beaches year-round.