Photo 88046882, (c) Alexey P. Seregin, some rights reserved (CC BY-NC), uploaded by Alexey P. Seregin

Attribution © Alexey P. Seregin some rights reserved Uploaded by apseregin Source iNaturalist Associated observations Photos / Sounds 2 photos What Black-headed Gull (Chroicocephalus ridibundus) Observer apseregin Date August 3, 2020 12:35 PM MSK Place Филино - р. Моча, Москва, Россия (Google, OSM) Date Added August 3, 2020 08:46 PM MSK Description Research project 19-34-70018 funded by RFBR and Moscow city Government 3 IDs Research Grade View Sizes small medium large original