Photo 12465155, (c) Bob Hislop, some rights reserved (CC BY-NC), uploaded by Bob Hislop

Attribution © Bob Hislop some rights reserved Uploaded by rhislop Source NaturaLista Colombia Associated observations Photos / Sounds What Western Gull (Larus occidentalis) Observer rhislop Date December 19, 2017 04:25 PM PST Place Embarcadero, San Francisco, CA, USA (Google, OSM) Date Added December 19, 2017 08:58 PM PST 2 IDs Research Grade View Sizes small medium large original