Crested Auklet vs Ancient Murrelet
Aethia cristatella so với Synthliboramphus antiquus
Side-by-Side Comparison
| Thuộc Tính | Crested Auklet | Ancient Murrelet |
|---|---|---|
| Tên Khoa Học | Aethia cristatella | Synthliboramphus antiquus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Alcidae | Alcidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 27,9 cm (11.0 in) | 27,1 cm (10.7 in) |
| Khối Lượng | 260,0 g (9.17 oz) | 208,16666666666666 g (7.34 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Crested Auklet
Least Concern
Ancient Murrelet
About These Birds
Crested Auklet
Crested Auklet, 23–26 cm, breeds in huge colonies on Aleutian and Bering Sea islands, forming spectacular wheeling flocks. Elaborate forward-curving crest, small orange bill. Males emit a citrus-tangerine scent from nape used in courtship. Planktivore; dives for euphausiids and copepods in icy waters.
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.