Red billed gull and chick.

The red-billed gull (Chroicocephalus scopulinus), once also known as the mackerel gull, is a native of New Zealand, being found throughout the country and on outlying islands including the Chatham Islands and subantarctic islands. The Māori name of this species is tarapunga or akiaki.[2] Its vernacular name is sometimes also used for the dolphin gull, a somewhat similar-looking but unrelated species. As is the case with many gulls, the red-billed gull has traditionally been placed in the genus Larus.