Great Shearwater vs Galapagos Petrel
Ardenna gravis compared with Pterodroma phaeopygia
Side-by-Side Comparison
| Attribute | Great Shearwater | Galapagos Petrel |
|---|---|---|
| Scientific Name | Ardenna gravis | Pterodroma phaeopygia |
| Order | Procellariiformes | Procellariiformes |
| Family | Procellariidae | Procellariidae |
| Conservation Status | Least Concern | Critically Endangered |
| Length | — | — |
| Wingspan | 63.6 cm (25.0 in) | 58.9 cm (23.2 in) |
| Weight | 832.5 g (29.37 oz) | 410.5 g (14.48 oz) |
| Diet | -- | -- |
| Clutch Size | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Conservation Status
Least Concern
Great Shearwater
Critically Endangered
Galapagos 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.
Galapagos Petrel
43 cm. Dark above with white forehead; white underparts with dark collar and carpal bar. Breeds Galapagos Islands; Critically Endangered with rapid decline due to introduced predators. Closely related to Hawaiian Petrel; migrates to eastern Pacific; feeds on squid and fish.