Photo 60345690, (c) kdstutzman, some rights reserved (CC BY-NC), uploaded by kdstutzman

Attribution © kdstutzman some rights reserved Uploaded by kdstutzman Source iNaturalist Associated observations Photos / Sounds What Great Black-backed Gull (Larus marinus) Observer kdstutzman Date January 26, 2020 11:04 AM EST Place Southwest Philadelphia, Philadelphia, PA, USA (Google, OSM) Date Added January 26, 2020 08:44 PM EST 2 IDs Research Grade View Sizes small medium large original