Black Guillemot vs Cassin's Auklet
Cepphus grylle 对比 Ptychoramphus aleuticus
Side-by-Side Comparison
| 属性 | Black Guillemot | Cassin's Auklet |
|---|---|---|
| 学名 | Cepphus grylle | Ptychoramphus aleuticus |
| 目 | Charadriiformes | Charadriiformes |
| 科 | Alcidae | Alcidae |
| 保护状况 | Least Concern | Near Threatened |
| 体长 | — | — |
| 翼展 | 30.8 cm (12.1 in) | 24.2 cm (9.5 in) |
| 体重 | 421.8666666666666 g (14.88 oz) | 175.0 g (6.17 oz) |
| 食性 | -- | -- |
| 产卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
保护状况
Least Concern
Black Guillemot
Near Threatened
Cassin's Auklet
About These Birds
Black Guillemot
白翅斑海雀 (Cepphus grylle),体长约30–35厘米。繁殖期全身黑色,翅上有大白斑;冬羽上体黑白杂色,下体白色。腿鲜红色,嘴黑色。广泛分布于北大西洋和北冰洋沿岸。以鱼类和甲壳动物潜水捕食,在岩石缝隙中营巢。
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.