Common diving petrelPelecanoides urinatrix
The common diving-petrel has a wide circumpolar distribution. In the New Zealand region, it breeds on many islands around North Island, and in Cook Strait and Foveaux Strait. It also breeds on Chatham, Snares, Antipodes and Auckland islands. The New Zealand population is large, with the breeding population thought to be between 300,000 and 2 million pairs. The common diving petrel is almost impossible to distinguish at sea from the South Georgia diving petrel. Consequently, records of common diving petrels might include both species.