White-bellied Storm-petrel vs White-faced Storm-petrel
Fregetta grallaria compared with Pelagodroma marina
Side-by-Side Comparison
| Attribute | White-bellied Storm-petrel | White-faced Storm-petrel |
|---|---|---|
| Scientific Name | Fregetta grallaria | Pelagodroma marina |
| Order | Procellariiformes | Procellariiformes |
| Family | Oceanitidae | Oceanitidae |
| Conservation Status | Least Concern | Least Concern |
| Length | — | — |
| Wingspan | 33.7 cm (13.3 in) | 31.6 cm (12.4 in) |
| Weight | 53.9 g (1.90 oz) | 54.0 g (1.90 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
None
White-bellied Storm-petrel only
White-faced Storm-petrel only
Conservation Status
Least Concern
White-bellied Storm-petrel
Least Concern
White-faced Storm-petrel
About These Birds
White-bellied Storm-petrel
White-bellied Storm-petrel, 18–21 cm, breeds on sub-Antarctic and South Atlantic islands; pelagic across the Southern Ocean in winter. White belly contrasts with dark breast band and dark upperparts; pale at base of rump. Planktivore; patters over sea surface. Often seen in the company of Wilson's Storm-petrel.
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.