Great Shearwater vs Spectacled Petrel
Ardenna gravis comparé à Procellaria conspicillata
Side-by-Side Comparison
| Attribut | Great Shearwater | Spectacled Petrel |
|---|---|---|
| Nom scientifique | Ardenna gravis | Procellaria conspicillata |
| Ordre | Procellariiformes | Procellariiformes |
| Famille | Procellariidae | Procellariidae |
| Statut de conservation | Least Concern | Vulnerable |
| Longueur | — | — |
| Envergure | 63,6 cm (25.0 in) | 71,0 cm (28.0 in) |
| Poids | 832,5 g (29.37 oz) | 1162,5 g (41.01 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Great Shearwater
Vulnerable
Spectacled Petrel
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.
Spectacled Petrel
58 cm. Large, sooty-black petrel; ivory bill with dark markings; diagnostic white spectacle marks around eye. Breeds only Inaccessible Island (Tristan da Cunha). Vulnerable; entire breeding population on a single isolated island; at risk from longline fisheries and storms.