Black-bellied Storm-petrel vs White-vented Storm-petrel
Fregetta tropica comparado com Oceanites gracilis
Side-by-Side Comparison
| Atributo | Black-bellied Storm-petrel | White-vented Storm-petrel |
|---|---|---|
| Nome científico | Fregetta tropica | Oceanites gracilis |
| Ordem | Procellariiformes | Procellariiformes |
| Família | Oceanitidae | Oceanitidae |
| Estado de conservação | Least Concern | Data Deficient |
| Comprimento | — | — |
| Envergadura | 32,9 cm (13.0 in) | 26,7 cm (10.5 in) |
| Peso | 53,0 g (1.87 oz) | 18,65 g (0.66 oz) |
| Dieta | -- | -- |
| Tamanho da postura | 1 | 1 |
| Population Trend | — | — |
Estado de conservação
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.