Photo 20916381, (c) JJ Johnson, some rights reserved (CC BY-NC), uploaded by JJ Johnson

Attribution © JJ Johnson some rights reserved Uploaded by metsa Source iNaturalist Associated observations Photos / Sounds What Caspian Tern (Hydroprogne caspia) Observer metsa Date July 6, 2018 12:58 PM PDT Place Lakeshore, San Francisco, CA, USA (Google, OSM) Date Added July 6, 2018 06:06 PM PDT 1 comment 3 IDs Research Grade View Sizes small medium large original