Great Shearwater vs Pycroft's Petrel
Ardenna gravis comparado con Pterodroma pycrofti
Side-by-Side Comparison
| Atributo | Great Shearwater | Pycroft's Petrel |
|---|---|---|
| Nombre científico | Ardenna gravis | Pterodroma pycrofti |
| Orden | Procellariiformes | Procellariiformes |
| Familia | Procellariidae | Procellariidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 63,6 cm (25.0 in) | 42,8 cm (16.9 in) |
| Peso | 832,5 g (29.37 oz) | 156,5 g (5.52 oz) |
| Dieta | -- | -- |
| Tamaño de la puesta | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Ninguno
Great Shearwater only
Pycroft's Petrel only
Estado de conservación
Least Concern
Great Shearwater
Vulnerable
Pycroft's 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.
Pycroft's Petrel
26–28 cm. Small; pale grey above with dark M-mark; white underparts with partial dark collar. Breeds small islands off northern New Zealand (Poor Knights, Hen & Chickens). Vulnerable; migrates to North Pacific. Feeds on squid and fish; nocturnal at colonies; threatened by rats.