Least, Forster’s, Gull-billed, Caspian, Royal and Black Tern, Black Skimmer, Osprey and other birds flying upside-down Photo Gallery by Mark B Bartosik at pbase.com

Mark B Bartosik | profile | all galleries >> From the field - current news photoblog >> Least, Forster’s, Gull-billed, Caspian, Royal and Black Tern, Black Skimmer, Osprey and other birds flying upside-down

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