Photo 72426061, (c) Patrick Hacker, some rights reserved (CC BY), uploaded by Patrick Hacker

Attribution © Patrick Hacker some rights reserved Uploaded by pastabaum Source iNaturalist Associated observations Photos / Sounds 3 photos What Black-headed Gull (Chroicocephalus ridibundus) Observer pastabaum Date May 11, 2020 03:41 PM CEST Place St. Andrä am Zicksee, BL, Österreich (Google, OSM) Date Added May 12, 2020 12:53 PM CEST 4 IDs Research Grade View Sizes small medium large original