Great Shearwater vs Grey Petrel
Ardenna gravis verglichen mit Procellaria cinerea
Side-by-Side Comparison
| Merkmal | Great Shearwater | Grey Petrel |
|---|---|---|
| Wissenschaftlicher Name | Ardenna gravis | Procellaria cinerea |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | — | — |
| Flügelspannweite | 63,6 cm (25.0 in) | 65,2 cm (25.7 in) |
| Gewicht | 832,5 g (29.37 oz) | 1140,0 g (40.21 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Great Shearwater
Near Threatened
Grey 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.
Grey Petrel
48 cm, wingspan 119–130 cm. Grey petrel with pale yellowish bill; white underparts. Breeds Tristan da Cunha, Gough, Auckland, Antipodes, Crozet, and Kerguelen. Unique among petrels in breeding in winter; feeds on fish and squid. Near Threatened; bycatch in longline fisheries.