Grey-backed Storm-petrel vs Polynesian Storm-petrel
Garrodia nereis so với Nesofregetta fuliginosa
Side-by-Side Comparison
| Thuộc Tính | Grey-backed Storm-petrel | Polynesian Storm-petrel |
|---|---|---|
| Tên Khoa Học | Garrodia nereis | Nesofregetta fuliginosa |
| Bộ | Procellariiformes | Procellariiformes |
| Họ | Oceanitidae | Oceanitidae |
| Tình Trạng Bảo Tồn | Least Concern | Endangered |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 25,0 cm (9.8 in) | 39,5 cm (15.6 in) |
| Khối Lượng | 32,5 g (1.15 oz) | 71,0 g (2.50 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Grey-backed Storm-petrel only
Polynesian Storm-petrel only
Tình Trạng Bảo Tồn
Least Concern
Grey-backed Storm-petrel
Endangered
Polynesian Storm-petrel
About These Birds
Grey-backed Storm-petrel
Grey-backed Storm-petrel, 16–19 cm, breeds on sub-Antarctic islands across the Southern Ocean from Tristan da Cunha to the Antipodes. Pale grey back and rump distinguishes it from most other storm-petrels. Planktivore; flutters low over the sea surface picking up zooplankton.
Polynesian Storm-petrel
Polynesian Storm-petrel, 25–26 cm, is the largest storm-petrel, breeding on tropical Pacific islands from the Marquesas to the Cook Islands. Two morphs: dark and white-bellied. Flies with distinctive high bounding style. Vulnerable; predated by introduced rats and cats on nesting islands. Planktivore.