Seabirds around fishing vessels

White-headed petrel

Pterodroma lessonii

The white-headed petrel breeds in New Zealand mainly on Antipodes and Auckland islands, with more than 100,000 pairs breeding annually. Tens of thousands of pairs also breed elsewhere, mainly on Kerguelen Islands. This species is relatively easy to identify, compared with other gadfly petrels.

Pterodroma lessonii
CC-BY, Dragonfly Science

Mean number of white-headed petrel recorded around fishing vessels during counts carried out by government observers, binned to 0.4 degree of longitude and latitude. The size of the circle indicates the number of observations, whereas the colour indicates the mean number of birds recorded during counts. Empty circles indicate that no birds were observed. The grey areas indicate water depths of less than 1000 m.

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