Photo 5450000, (c) reddad, some rights reserved (CC BY-NC), uploaded by reddad

Attribution © reddad some rights reserved Uploaded by reddad Source iNaturalist Associated observations Photos / Sounds 5 photos What Black-headed Gull (Chroicocephalus ridibundus) Observer reddad Date August 25, 2014 03:40 PM CEST Place Friedrichskoog (Google, OSM) Date Added November 6, 2016 06:57 PM CET 4 comments 5 IDs Research Grade View Sizes small medium large original