The Great Shearwater (Puffinus gravis) is a large shearwater in the seabird family Procellariidae which feeds on fish and squid, which it catches from the surface or by plunge-diving. It is one of the few birds which migrate from breeding grounds in the Southern Hemisphere to the Northern Hemisphere. It flies by dipping from side to side on stiff wings, the wingtips almost touching the water, with few wingbeats.Photo: JJ Harrison
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