Photo 2999209, (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 2 photos What Heermann's Gull (Larus heermanni) Observer rhislop Date February 6, 2016 Place San Francisco, Pier 39 (Google, OSM) Date Added February 11, 2016 12:50 AM PST 4 IDs Research Grade View Sizes small medium large original