Great Shearwater vs White-necked Petrel
Ardenna gravis в сравнении с Pterodroma cervicalis
Side-by-Side Comparison
| Характеристика | Great Shearwater | White-necked Petrel |
|---|---|---|
| Научное название | Ardenna gravis | Pterodroma cervicalis |
| Отряд | Procellariiformes | Procellariiformes |
| Семейство | Procellariidae | Procellariidae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | — | — |
| Размах крыльев | 63,6 cm (25.0 in) | 58,4 cm (23.0 in) |
| Масса | 832,5 g (29.37 oz) | 462,5 g (16.31 oz) |
| Питание | -- | -- |
| Размер кладки | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
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.