Juan Fernandez Petrel vs Antarctic Petrel
Pterodroma externa so với Thalassoica antarctica
Side-by-Side Comparison
| Thuộc Tính | Juan Fernandez Petrel | Antarctic Petrel |
|---|---|---|
| Tên Khoa Học | Pterodroma externa | Thalassoica antarctica |
| Bộ | Procellariiformes | Procellariiformes |
| Họ | Procellariidae | Procellariidae |
| Tình Trạng Bảo Tồn | Vulnerable | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 58,3 cm (23.0 in) | 59,2 cm (23.3 in) |
| Khối Lượng | 432,5 g (15.26 oz) | 658,3333333333334 g (23.22 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Juan Fernandez Petrel only
Antarctic Petrel only
Không
Tình Trạng Bảo Tồn
Vulnerable
Juan Fernandez Petrel
Least Concern
Antarctic Petrel
About These Birds
Juan Fernandez Petrel
43 cm, wingspan 97 cm. Large; dark grey-brown above with white nape and underparts; dark carpal bar and partial collar. Breeds Juan Fernandez Islands (Chile); ranges across subtropical Pacific. Vulnerable due to small breeding range; feeds on fish and squid.
Antarctic Petrel
40–46 cm, wingspan 100–110 cm. Striking chocolate-brown and white pattern; only member of its genus. Breeds solely in Antarctica on cliff ledges; among the most southerly-nesting birds. Feeds on fish and krill beneath pack ice. Returns to colonies in October; one of the most abundant Antarctic seabirds.