Photo 95951618, (c) Jackson W.F. Chu, some rights reserved (CC BY-NC-SA), uploaded by Jackson W.F. Chu

Attribution © Jackson W.F. Chu some rights reserved Uploaded by jackson_chu Source iNaturalist Canada Associated observations Photos / Sounds What Black-headed Gull (Chroicocephalus ridibundus) Observer jackson_chu Date October 12, 2010 04:34 AM PDT Place Cork, Ireland (Google, OSM) Date Added September 18, 2020 05:19 PM PDT 4 IDs Research Grade View Sizes small medium large original Copyright ©Jackson W. F. Chu