Photo 6363370, (c) Marcus Rosten, some rights reserved (CC BY), uploaded by Marcus Rosten

Attribution © Marcus Rosten some rights reserved Uploaded by mlrosten Source iNaturalist Associated observations Photos / Sounds 4 photos What Great Black-backed Gull (Larus marinus) Observer mlrosten Date February 18, 2017 12:29 PM EST Place Buffalo, NY, USA (Google, OSM) Date Added February 23, 2017 03:31 PM EST 2 IDs Research Grade View Sizes small medium large original Copyright