Photo 702824, (c) Brian Martin, some rights reserved (CC BY-NC), uploaded by Brian Martin

Attribution © Brian Martin some rights reserved Uploaded by lugefool Source iNaturalist Associated observations Photos / Sounds What Ring-billed Gull (Larus delawarensis) Observer lugefool Date March 1, 2014 Place Berkeley (Google, OSM) Date Added March 3, 2014 09:29 AM PST 3 IDs Research Grade View Sizes small medium large original