Pterodroma cervicalis

Overview

The white-necked petrel (Pterodroma cervicalis), also known as the white-naped petrel, is a solitary pelagic seabird belonging to the family Procellariidae. It is classified as vulnerable by the IUCN, a status that reflects the combined population of this species and the very similar Vanuatu petrel.

Identification

• Length of approximately 43 cm with a wingspan of 95–105 cm and a weight range of 380–545 g.
• Features a black cap, a distinct white rear neck, and dark grey back, wings, and tail with a darker rump.
• White underparts contrasting with dark bases on the primary feathers, though upperparts become darker in worn individuals.
• Exhibits an effortless, graceful flight with few wing beats and notably does not follow ships.

Habitat

During the non-breeding season, the species occurs throughout a large part of the Pacific, foraging in the open seas of the south-west Pacific. Breeding is restricted to Macauley Island in New Zealand's Kermadec Islands, as well as Norfolk Island and Phillip Island in Australia, utilizing subtropical or tropical seasonally wet or flooded lowland grasslands.

Diet

This petrel feeds on the wing, picking fish and squid from near the surface of the water.

Did you know?

The species was formerly present on Raoul Island but has been extirpated from this locality due to predation by rats and cats.