| Birds | Great Black-backed Gull Larus marinus    Copyright David Seibel, 2013 (#7114) | Send Comment Camera: Canon EOS-1D Mark IV Exposure: 1/1600 sec, f/16.0, ISO 1600 Lens: Canon 500mm f/4L IS + 2x II TC Date: February 3, 2013 Location: Clinton Lake, Kansas, USA Description: A 3rd-winter Great Black-backed Gull (center), rare in Kansas, attacks a 1st-winter Herring Gull while an adult Ring-billed Gull looks on.