American Black Oystercatcher vs Variable Oystercatcher
Haematopus bachmani so với Haematopus unicolor
Side-by-Side Comparison
| Thuộc Tính | American Black Oystercatcher | Variable Oystercatcher |
|---|---|---|
| Tên Khoa Học | Haematopus bachmani | Haematopus unicolor |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Haematopodidae | Haematopodidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 54,1 cm (21.3 in) |
| Khối Lượng | 600,25 g (21.17 oz) | 683,1666666666666 g (24.10 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-4 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
American Black Oystercatcher only
Không
Variable Oystercatcher only
Không
Tình Trạng Bảo Tồn
American Black Oystercatcher
Variable Oystercatcher
About These Birds
American Black Oystercatcher
American Black Oystercatcher (Haematopus bachmani) is a large 42–47 cm all-dark oystercatcher of the Pacific coast of North America. Sooty black plumage; bright orange-red bill; pale pinkish legs; yellow eye with orange ring. Inhabits rocky coasts and offshore islands from Alaska south to Baja California. Feeds on mussels, limpets, and barnacles.
Variable Oystercatcher
Variable Oystercatcher (Haematopus unicolor) is a large 46–49 cm oystercatcher endemic to New Zealand's coastline. Plumage ranges from all-black to pied (black and white) within the same population. Orange-red bill; pink legs. Inhabits rocky and sandy shores around both main islands and offshore islands. Feeds on bivalves, worms, and crustaceans.