Grey-backed Storm-petrel vs White-vented Storm-petrel
Garrodia nereis مقارنةً بـ Oceanites gracilis
Side-by-Side Comparison
| السمة | Grey-backed Storm-petrel | White-vented Storm-petrel |
|---|---|---|
| الاسم العلمي | Garrodia nereis | Oceanites gracilis |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Oceanitidae | Oceanitidae |
| حالة الحفاظ | Least Concern | Data Deficient |
| الطول | — | — |
| طول الجناح | 25,0 cm (9.8 in) | 26,7 cm (10.5 in) |
| الوزن | 32,5 g (1.15 oz) | 18,65 g (0.66 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Grey-backed Storm-petrel
Data Deficient
White-vented 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.
White-vented Storm-petrel
White-vented Storm-petrel, 15–17 cm, is a small, poorly known storm-petrel of the eastern South Pacific. Dark above with white rump and white vent. Pelagic off the coasts of Peru, Chile, and Ecuador; breeding grounds discovered only recently on tiny Patagonian islands. Planktivore.