Black Guillemot vs Ancient Murrelet
Cepphus grylle so với Synthliboramphus antiquus
Side-by-Side Comparison
| Thuộc Tính | Black Guillemot | Ancient Murrelet |
|---|---|---|
| Tên Khoa Học | Cepphus grylle | Synthliboramphus antiquus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Alcidae | Alcidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 30,8 cm (12.1 in) | 27,1 cm (10.7 in) |
| Khối Lượng | 421,8666666666666 g (14.88 oz) | 208,16666666666666 g (7.34 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Black Guillemot
Least Concern
Ancient Murrelet
About These Birds
Black Guillemot
Black Guillemot, 30–32 cm, is a compact North Atlantic alcid, distinctive in summer: entirely black with bold white wing patches and vivid red feet. Resident on rocky Arctic and boreal shores year-round; does not undertake long pelagic migrations. Dives to 50 m for blennies and sand eels near shore.
Ancient Murrelet
Ancient Murrelet, 24–27 cm, breeds in burrows on North Pacific islands from British Columbia to Japan. Black hood, grey back, white underparts with yellow bill. Nocturnal at colonies to avoid predators. Chicks lead-march to sea within days of hatching — abandoning the nest very early. Planktivore and piscivore.