Sep 18 2007 - Slaty-backed Gull - Alaska
Sep 23 2007 - Slaty-backed Gull - Alaska
Sep 24 2007 - Slaty-backed Gull (center) and Glaucous-winged Gulls - Alaska
Sep 24 2007 - Slaty-backed Gull (center) with Glaucous-winged Gulls - Alaska
Sep 14 2011 - Slaty-backed Gull (front) and Glaucous-winged Gull - Alaska
Sep 14 2011 - Slaty-backed Gull - Alaska
May 22 2017 - Slaty-backed Gull - Alaska
May 22 2017 - Slaty-backed Gull (rear) and Glaucous-winged Gull - Alaska
May 22 2017 - Slaty-backed Gull - Alaska
May 22 2017 - Slaty-backed Gull - Alaska
May 22 2017 - Slaty-backed Gull - Alaska
May 25 2017 - Slaty-backed Gull - Alaska
May 26 2017 - Slaty-backed Gull (front) and Glaucous-winged Gulls - Alaska
May 26 2017 - Slaty-backed Gull (center) and Glaucous-winged Gulls - Alaska
May 26 2017 - Slaty-backed Gull (center) and Glaucous-winged Gulls - Alaska
May 26 2017 - Slaty-backed Gull (center) and Glaucous-winged Gulls - Alaska
Sep 27 2017 - Slaty-backed Gull - Alaska
Sep 27 2017 - Slaty-backed Gull (left) and Glaucous-winged Gull - Alaska
Sep 27 2017 - Slaty-backed Gull - Alaska
Sep 27 2017 - Slaty-backed Gull (bottom) and Glaucous-winged Gull - Alaska
Sep 27 2017 - Slaty-backed Gull - Alaska
Sep 27 2017 - Slaty-backed Gull (left) and Glaucous-winged Gull - Alaska
May 29 2018 - Slaty-backed Gull - Alaska
Sep 26 2018 - Slaty-backed Gull - Alaska
Sep 26 2018 - Slaty-backed Gull - Alaska
Sep 26 2018 - Slaty-backed Gull - Alaska