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Buller's Shearwater - BirdForum Opus

Photo © by Swift
Little Barrier Island, New Zealand, November 2003

Alternative names: Grey-backed Shearwater or New Zealand Shearwater.

Ardenna bulleri


Length 16" (41 cm), wingspan 40" (102 cm)
Clean white below, grey above, dark carpal bars and primaries create distinct M-shaped pattern, dark cap and tail, broad-based wings.

Photo © by Glen Tepke
Monterey Bay, California, USA, September 2008


Breeds islands off New Zealand; wide transpacific dispersal. In northern Pacific in a clock-wise movement, from May in the west to October by California.

Yellow category on Audubon Watchlist.


This is a monotypic species[1].
Formerly placed in genus Puffinus.


Pelagic when not breeding.


Photo © by Glen Tepke
Monterey Bay, California, USA, September 2008


Graceful flight, soars extensively.


The diet includes small fish, squid, crustaceans, jellyfish and krill.


Colonial breeders, nesting in burrows, rock crevices or under tree roots. The white egg is incubated by both adults for 51 days.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2015. The eBird/Clements checklist of birds of the world: v2015, with updates to August 2015. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. ARKive

Recommended Citation

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