Upper Texas Coast (UTC) December 2006: Osprey's fishing technique
by Mark B Bartosik
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Glaucous Gull UTC April 21, 2018
by Mark B Bartosik
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White Ibis, Laughing Gull & Eels - UTC August 2009
by Mark B Bartosik
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Birds feeding on catfish and crayfish February 2, 2015 UTC
by Mark B Bartosik
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Upper Texas Coast (UTC)- February 25, 2007 - Harlan's and Krider's Red-tailed Hawk
by Mark B Bartosik
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Yellow Warbler UTC May 5, 2012
by Mark B Bartosik
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Pink feather flush in gulls and terns plumages UTC Spring 2009
by Mark B Bartosik
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Black Tern juvenile - UTC - September 3, 2012
by Mark B Bartosik
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Cape May Warbler UTC May 5, 2012
by Mark B Bartosik
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Seaside Sparrow – foraging and agonistic behaviors – UTC – August 25, 2007
by Mark B Bartosik
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