Black Guillemot vs Cassin's Auklet
Cepphus grylle 比較対象 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 |
| 保全状況 | Least Concern | Near Threatened |
| 体長 | — | — |
| 翼開長 | 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 | -- | -- |
| 一腹卵数 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
保全状況
Least Concern
Black Guillemot
Near Threatened
Cassin's Auklet
About These Birds
Black Guillemot
ハジロウミスズメ、30〜32 cm。北大西洋の小型ウミスズメ類;夏羽は全身黒色に太い白い翼斑と鮮やかな赤い足。北極〜亜寒帯の岩礁海岸に通年生息;繁殖地付近の沿岸海域で越冬。潜水して魚介類を捕食。
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.