Great Shearwater vs White-necked Petrel
Ardenna gravis comparado con Pterodroma cervicalis
Side-by-Side Comparison
| Atributo | Great Shearwater | White-necked Petrel |
|---|---|---|
| Nombre científico | Ardenna gravis | Pterodroma cervicalis |
| Orden | Procellariiformes | Procellariiformes |
| Familia | Procellariidae | Procellariidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 63,6 cm (25.0 in) | 58,4 cm (23.0 in) |
| Peso | 832,5 g (29.37 oz) | 462,5 g (16.31 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Estado de conservación
Least Concern
Great Shearwater
Vulnerable
White-necked 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.
White-necked Petrel
43 cm. Large gadfly petrel; dark above with white hindneck collar; white underparts with dark carpal bar. Breeds Kermadec and Phillip islands (Norfolk). Vulnerable; ranges in southwestern Pacific. Nocturnal at colonies; feeds on squid and fish.