Cook's Petrel

Pterodroma cookii

Order

PROCELLARIIFORMES

Family

Petrels and Shearwaters (Procellariidae)

Code 4

COPE

Code 6

PTECOO

ITIS

ILLUSTRATION

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PHOTOS

CONSERVATION STATUS

Vulnerable

The Cook's Petrel only breeds on Great Barrier, Little Barrier, and the Codfish Islands in New Zealand. It breeds in burrows on forested ridges and steep slopes, and ranges in pelagic waters around New Zealand, and in much of the tropical and eastern Pacific Ocean. The population of this species is estimated at 670,000 individuals. Although it had greatly declined in the past because of depredation by rats and cats while nesting, predator control and eradication programs have helped to stabilize the large nesting population on Little Barrier Island. Because this species is still potentially threatened by introduced predators and climate change, it has a conservation rating of Vulnerable.

SUMMARY

Overview

Cook's Petrel: This small petrel has a slate-gray back and upperwings marked by a black M-pattern, white underparts, under wings, and face with a small dark eye patch, black bill, blue-gray legs and feet, long slender wings, and a gray tail with black-tipped central feathers and white edges. It feeds mostly on fish and squid. Rapid and erratic flight. Sexes are similar.


Range and Habitat

Cook's Petrel: Breeds only in New Zealand, on Little Barrier, Great Barrier and Codfish Islands. Migrate to the Pacific coast of South America, and across the equator to the east Pacific Ocean. Generally found over temperate and subtropical waters. Pelagic, as they rarely occur near land except when breeding on offshore islands, forested ridges and steep slopes.

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Cook's Petrel SONGS AND CALLS

Cook's Petrel Silent

Generally silent except on breeding grounds.

Similar Sounding


Voice Text

"Ti-ti-ti" or "whik-kek-kek"

INTERESTING FACTS

  • Cook's Petrel was formerly more numerous than today. Numbers were affected by predation by introduced mammals and Wekas. Populations have started to recover as rats and cats and other introduced wildlife are removed from breeding islands.
  • A group of Cook's Petrels are collectively known as a "pantry" of petrels.

SIMILAR BIRDS

RANGE MAP NORTH AMERICA

About this North America Map

This map shows how this species is distributed across North America.

RANGE MAP HAWAII

About this Hawaii Map

This map shows how this species is distributed across the Hawaiian island.

FAMILY DESCRIPTION

TERMINOLOGY

CREDITS

Author

Artist

Irina Rud-Volga

HELP ME IDENTIFY A BIRD

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PelagicX
The pelagic is a type of bird whose habitat is on the open ocean rather than in a coastal region or on inland bodies of water (lakes, rivers). An example of a pelagic bird is the blacklegged kittiwake.
UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

FaceX
The front part of the head consisting of the bill, eyes, cheeks and chin.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X