File:Pterodroma cookii (AM LB3646-4).jpg

Cook's Petrel

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Not yet spotted on Fladder

Cook's Petrel is a small, pale gadfly petrel with a distinct 'W' pattern on its upperwing, breeding in New Zealand and migrating to the North Pacific. It is a highly pelagic species.

Where to spot

Breeds on islands off New Zealand (e.g., Little Barrier, Great Barrier). Migrates to the North Pacific, foraging extensively from California to Alaska.

How to spot

Look for its small size, pale grey upperparts, white underparts, and a clear dark 'W' or 'M' pattern across its upperwing. Its flight is swift, agile, and often arcing. Best observed on pelagic trips off New Zealand (winter) or western North America (summer).

When to spot

Breeding occurs during the austral summer (October-May). Most commonly observed in the North Pacific from May to September. In New Zealand waters during the austral winter.

Where to spot

Breeds on islands off New Zealand (e.g., Little Barrier, Great Barrier). Migrates to the North Pacific, foraging extensively from California to Alaska.

How to spot

When to spot

Breeding occurs during the austral summer (October-May). Most commonly observed in the North Pacific from May to September. In New Zealand waters during the austral winter.

Credits: Wikimedia Commons

This species undertakes a remarkable trans-equatorial migration, traveling from its New Zealand breeding grounds to forage in the rich waters of the North Pacific during the non-breeding season.

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