Photo 82459440, (c) Serge M. Appolonov, some rights reserved (CC BY-NC), uploaded by Serge M. Appolonov

Attribution © Serge M. Appolonov some rights reserved Uploaded by velibortravoved Source iNaturalist Associated observations Photos / Sounds What Black-headed Gull (Chroicocephalus ridibundus) Observer velibortravoved Date July 3, 2020 06:42 PM MSK Place 55.4975..., 46.4209... (Google, OSM) Date Added July 4, 2020 12:52 PM MSK 2 IDs Research Grade View Sizes small medium large original