Brent Stephenson / Great shearwater (Puffinus gravis) in flight at sea, showing the pale collar and upperwing pattern. Off Stewart Island, New Zealand, April.
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Robin Chittenden / Great Shearwater (Puffinus gravis) Portugal, October.
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Robin Chittenden / Great Shearwater (Puffinus gravis) Portugal, October.
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Robin Chittenden / Great Shearwater (Puffinus gravis) in flight, Portugal, October.
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Robin Chittenden / Great Shearwater (Puffinus gravis) with wings stretched, Portugal, October.
