The BioFiles - Bill Hubick

Details for Record 207363

Page: Cory's Shearwater (Calonectris diomedea)

Date: 5/28/2011

County: Dare

State: North Carolina

Country: United States

Links:
eBird checklist #S8410715


A Cory's Shearwater (borealis) off Cape Hatteras, North Carolina (5/28/2011). Note the difference in underwing pattern and bill size between this bird and the following Scopoli's Shearwater (diomedea).

A Scopoli's Shearwater off Cape Hatteras, North Carolina (5/29/2011). This is the Mediterranean form (diomedea) of Cory's Shearwater, which is a candidate for a future split. Note how the white extends into the dark primaries and its smaller bill.

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