Seabird information

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Black-billed gull

Larus bulleri

Has a long, thin black bill and dark legs and feet

Often seen in flocks at estuaries

Feeds on insects and small fish, and scavenges

Breeds on braided rivers in the South Island and sand spits and river flats in the North Island, from September to November

NZ Conservation status Nationally endangered

This bird is similar in size and colouring to the common red-billed gull, but has paler plumage and a characteristic black bill.

The species is now in serious decline, due to the chicks being vulnerable to predation by rats, hedgehogs, dogs, pigs and mustelids. In one incident over a two-month period in 2006, one cat and a ferret killed hundreds of black-billed gull chicks on the Aparima River in Southland.

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Black-billed gull

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Larus bulleri

Has a long, thin black bill and dark legs and feet

Often seen in flocks at estuaries

Feeds on insects and small fish, and scavenges

Breeds on braided rivers in the South Island and sand spits and river flats in the North Island, from September to November

NZ Conservation status Nationally endangered

This bird is similar in size and colouring to the common red-billed gull, but has paler plumage and a characteristic black bill.

The species is now in serious decline, due to the chicks being vulnerable to predation by rats, hedgehogs, dogs, pigs and mustelids. In one incident over a two-month period in 2006, one cat and a ferret killed hundreds of black-billed gull chicks on the Aparima River in Southland.