Least Auklet vs Cassin's Auklet
Aethia pusilla 对比 Ptychoramphus aleuticus
Side-by-Side Comparison
| 属性 | Least Auklet | Cassin's Auklet |
|---|---|---|
| 学名 | Aethia pusilla | Ptychoramphus aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Alcidae | Alcidae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | — | — |
| 翼展 | 18.9 cm (7.4 in) | 24.2 cm (9.5 in) |
| 体重 | 84.33333333333333 g (2.97 oz) | 175.0 g (6.17 oz) |
| 食性 | -- | -- |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Least Auklet
Near Threatened
Cassin's Auklet
About These Birds
Least Auklet
小海雀（体长15-16厘米），是体型最小的海雀，在岩石遍布的阿留申群岛和白令海岛屿上形成数百万只的庞大群落繁殖。属海雀科（Alcidae），体羽深色具白色胸部，潜水捕食浮游甲壳类动物。
Cassin's Auklet
Cassin's Auklet, 21–23 cm, is a small, almost entirely dark grey auklet breeding in burrows on rocky North Pacific islands from Baja California to the Aleutians. Feeds almost exclusively on zooplankton — euphausiids and copepods — at night. Highly colonial; winters near shore.