Caspian Tern

Hydroprogne caspia, the taranui, is the world’s largest tern and a native New Zealand breeder. It differs from other local terns through its huge red bill and broad black cap. The body is white with a pale grey back, black cap and massive coral-red bill. Long wings and slow powerful beats create a gull-like flight.

It occurs around both main islands and some offshore islands, breeding in scattered coastal and inland colonies. Estuaries, beaches, lakes and braided rivers are used. It patrols water before plunging for medium-sized fish. Pairs defend nest scrapes on open sand, shingle or shell.

The New Zealand classification is Nationally Vulnerable. Pūkorokoro Miranda, Kaipara Harbour and Lake Ellesmere Te Waihora regularly hold taranui.