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Overview
White-necked petrel

White-necked petrel

Wikipedia

The white-necked petrel, also known as the white-naped petrel, is a species of seabird in the family Procellariidae. During the non-breeding season it occurs throughout a large part of the Pacific, but it is only known to breed on Macauley Island in New Zealand's Kermadec Islands and the Australian territory of Norfolk Island and Phillip Island. It formerly bred on Raoul Island, but has now been extirpated from this locality due to predation by rats and cats. Reports of breeding on Merelava, Vanuatu, are more likely to be the very similar Vanuatu petrel, P. occulta, which some consider to be a subspecies of the white-necked petrel. The IUCN rating as vulnerable is for the "combined" species.

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Distribution

Region

South and Central Pacific Ocean

Typical Environment

Breeds on Macauley Island in the Kermadec Islands (New Zealand) and on Norfolk and nearby Phillip Island (Australia). Outside the breeding season it ranges widely over the subtropical and temperate Pacific, often far from land. At sea it favors productive waters and oceanic fronts where prey concentrates. It rarely approaches coastlines except when returning to colonies.

Altitude Range

Sea level to 600 m

Climate Zone

Subtropical

Characteristics

Size40–45 cm
Wing Span95–110 cm
Male Weight0.55 kg
Female Weight0.5 kg
Life Expectancy25 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

Also called the white-naped petrel, this tubenose breeds on a handful of remote islands and spends the rest of the year roaming the open Pacific. It nests in burrows on steep, vegetated slopes and visits colonies only at night. Invasive predators like rats and cats have caused historical colony losses, making protection of breeding islands crucial.

Gallery

Bird photo
Bird photo
Bird photo
Pterodroma cervicalis Male Mount, Auckland Museum Collection

Pterodroma cervicalis Male Mount, Auckland Museum Collection

Bird photo

Behaviour

Temperament

pelagic and elusive

Flight Pattern

long arcing glides with stiff, slightly bowed wings

Social Behavior

A colonial nester that digs burrows or uses crevices on steep slopes, visiting colonies strictly at night to avoid predators. Pairs are typically long-term and lay a single egg per season, with both adults sharing incubation and chick-rearing. Outside the breeding season it is solitary or in loose associations at sea where food is abundant.

Migratory Pattern

Seasonal migrant

Song Description

Mostly silent at sea. At colonies it gives mournful, wailing and yelping calls at night, with softer chatter exchanged between mates near burrow entrances.

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