Great Shearwater vs Tropical Shearwater
Ardenna gravis comparé à Puffinus bailloni
Side-by-Side Comparison
| Attribut | Great Shearwater | Tropical Shearwater |
|---|---|---|
| Nom scientifique | Ardenna gravis | Puffinus bailloni |
| Ordre | Procellariiformes | Procellariiformes |
| Famille | Procellariidae | Procellariidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 63,6 cm (25.0 in) | 37,0 cm (14.6 in) |
| Poids | 832,5 g (29.37 oz) | 212,0 g (7.48 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Great Shearwater
Least Concern
Tropical Shearwater
About These Birds
Great Shearwater
43–51 cm, wingspan 105–122 cm. Large; dark brown above with white underparts, dark cap, and distinctive scaly pattern on upperwing. Breeds Tristan da Cunha, Gough, and Falklands; migrates to North Atlantic. Feeds on fish and squid; spectacular post-breeding migration past UK coasts.
Tropical Shearwater
27–31 cm. Small; dark brown above; white below. Breeds islands of Indian Ocean and west Pacific. Several subspecies sometimes treated as separate species. Feeds on fish and squid; nocturnal at breeding colonies. Part of the Audubon's Shearwater species complex.