Photo 29045912, (c) adealy, all rights reserved, uploaded by adealy

Attribution © adealy all rights reserved Uploaded by adealy Source iNaturalist Associated observations Photos / Sounds What Black-headed Gull (Chroicocephalus ridibundus) Observer adealy Date December 5, 2018 02:00 PM +08 Place London, UK (Google, OSM) Date Added December 11, 2018 05:03 AM +08 5 IDs Research Grade View Sizes small medium large original