Numbers of Semipalmated Sandpipers are peaking in Johnson's Mills, upper Bay of Fundy, where this image was created today. We had about 75,000 and 100,000 yesterday. These birds are roosting on the beach at high tide. They are trying to save energy so that they can put on as much fat as possible over the shortest time, in preparation for their non-stop migration to South America. This flock was dispersed soon after the image was made by a peregrine falcon.
f9 was not quite sufficient to render the birds at the back or front in perfect focus but I think the effect is OK
Canon 40D, 500mm f4
Date: 15 August 2008, 12:03 pm
ISO 640
Shutter speed: 1/640
Aperture: f9







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