White-bellied Storm-petrel vs Pincoya Storm-petrel
Fregetta grallaria compared with Oceanites pincoyae
Side-by-Side Comparison
| Attribute | White-bellied Storm-petrel | Pincoya Storm-petrel |
|---|---|---|
| Scientific Name | Fregetta grallaria | Oceanites pincoyae |
| Order | Procellariiformes | Procellariiformes |
| Family | Oceanitidae | Oceanitidae |
| Conservation Status | Least Concern | Data Deficient |
| Length | — | — |
| Wingspan | 33.7 cm (13.3 in) | 26.7 cm (10.5 in) |
| Weight | 53.9 g (1.90 oz) | 26.0 g (0.92 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Shared Habitats
None
White-bellied Storm-petrel only
Pincoya Storm-petrel only
Conservation Status
Least Concern
White-bellied Storm-petrel
Data Deficient
Pincoya 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.
Pincoya Storm-petrel
Pincoya Storm-petrel, 16–18 cm, was described as a new species only in 2013 from the Chiloé Archipelago of Chile. One of the most recently discovered birds in the Americas. Dark with white belly patch. Breeds in Chilean fjords — unusual for storm-petrels. Forages over cold sub-Antarctic coastal waters.