American Avocet flock, Galileo Hill, May 2008
by Tom Grey
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Greater Scaup
by Ian Fulton
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Bosque del Apache, Feb 3, 2007 morning
by GSD
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The flock
by Adit Merkine
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THE WILD PARROTS OF TELEGRAPH HILL
by Bob Kelly
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2019: FLOCK Gemma Crowe
by Tracy O'Camera
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Odd peep/calildris sandpiper - Duxbury Beach, MA - July 29, 2012
by Rick Bowes
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Bonaparte’s Gull flock feeding in breakers - UTC January
by Mark B Bartosik
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Common Starling - Flock
by Martin Trachsel
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Gulls at Horsetooth Reservoir 11 November 2011
by Nick Komar
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