Black-bellied Storm-petrel vs White-faced Storm-petrel
Fregetta tropica مقارنةً بـ Pelagodroma marina
Side-by-Side Comparison
| السمة | Black-bellied Storm-petrel | White-faced Storm-petrel |
|---|---|---|
| الاسم العلمي | Fregetta tropica | Pelagodroma marina |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Oceanitidae | Oceanitidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 32,9 cm (13.0 in) | 31,6 cm (12.4 in) |
| الوزن | 53,0 g (1.87 oz) | 54,0 g (1.90 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Black-bellied Storm-petrel
Least Concern
White-faced Storm-petrel
About These Birds
Black-bellied Storm-petrel
Black-bellied Storm-petrel, 19–21 cm, breeds on sub-Antarctic islands and disperses widely across the Southern Ocean. Dark above with white rump; distinctive black streak through the white belly. Patters over wave surfaces picking up plankton. Long-distance pelagic movements after breeding.
White-faced Storm-petrel
White-faced Storm-petrel, 18–21 cm, is distinctive — dark above but with a striking white supercilium and pale underparts; bounces across the sea surface on long legs like a clockwork toy. Breeds on islands in the North and South Atlantic, Indian Ocean, and Australia. Circumglobal oceanic migrant.