Ancient Murrelet vs Guadalupe Murrelet
Synthliboramphus antiquus so với Synthliboramphus hypoleucus
Side-by-Side Comparison
| Thuộc Tính | Ancient Murrelet | Guadalupe Murrelet |
|---|---|---|
| Tên Khoa Học | Synthliboramphus antiquus | Synthliboramphus hypoleucus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Alcidae | Alcidae |
| Tình Trạng Bảo Tồn | Least Concern | Endangered |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 27,1 cm (10.7 in) | 23,9 cm (9.4 in) |
| Khối Lượng | 208,16666666666666 g (7.34 oz) | 160,5 g (5.66 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
Ancient Murrelet
Endangered
Guadalupe Murrelet
About These Birds
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.
Guadalupe Murrelet
Guadalupe Murrelet, 22–24 cm, breeds only on Guadalupe Island off Baja California. Very similar to Scripps's Murrelet but with more extensive white on the face. Critically Endangered; fewer than 1,000 individuals; nesting habitat threatened by feral cats and goats (now being controlled). Piscivore.