Photo 3888596, (c) Emily Dove Barton, some rights reserved (CC BY-NC), uploaded by Emily Dove Barton

Attribution © Emily Dove Barton some rights reserved Uploaded by emilydove Source iNaturalist Associated observations Photos / Sounds What Caspian Tern (Hydroprogne caspia) Observer emilydove Date June 2, 2016 05:59 PM PDT Place Lake Merritt, Oakland, CA, US (Google, OSM) Date Added June 2, 2016 06:04 PM PDT 1 comment 4 IDs Research Grade View Sizes small medium large original