Southern Black-backed Gull

Larus dominicanus is the large black-backed gull known in New Zealand as karoro. It differs from smaller local gulls through its heavy yellow bill, dark mantle and powerful build. Adults have a white head and body, black back, yellow legs and a yellow bill with a red spot. Juveniles are mottled brown and take several years to mature.

It is widespread around New Zealand’s coasts and inland wherever food is available. The species also ranges across much of the Southern Hemisphere. It eats fish, invertebrates, carrion, eggs, chicks and human refuse. Birds forage alone or gather in large numbers at rich food sources.

The New Zealand classification is Not Threatened. Wellington waterfront, Kaikōura Peninsula and Otago Peninsula provide easy sightings.