Seabirds around fishing vessels

Gadfly petrels

Thirteen species of gadfly petrels can be seen in New Zealand waters. They are relatively small and can be difficult to distinguish at sea.

Pterodroma spp.
CC-BY, Dragonfly Science

Mean number of gadfly petrels 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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