Black-bellied Storm-petrel vs White-vented Storm-petrel
Fregetta tropica comparé à Oceanites gracilis
Side-by-Side Comparison
| Attribut | Black-bellied Storm-petrel | White-vented Storm-petrel |
|---|---|---|
| Nom scientifique | Fregetta tropica | Oceanites gracilis |
| Ordre | Procellariiformes | Procellariiformes |
| Famille | Oceanitidae | Oceanitidae |
| Statut de conservation | Least Concern | Data Deficient |
| Longueur | — | — |
| Envergure | 32,9 cm (13.0 in) | 26,7 cm (10.5 in) |
| Poids | 53,0 g (1.87 oz) | 18,65 g (0.66 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1 | 1 |
| Population Trend | — | — |
Statut de conservation
Least Concern
Black-bellied Storm-petrel
Data Deficient
White-vented 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-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.