Photo 60055072, (c) Zihao Wang, some rights reserved (CC BY), uploaded by Zihao Wang

Attribution © Zihao Wang some rights reserved Uploaded by zihaowang Source iNaturalist Associated observations Photos / Sounds 6 photos What Black-headed Gull (Chroicocephalus ridibundus) Observer zihaowang Date January 19, 2020 02:50 PM AST Place Brooklyn, NY, USA (Google, OSM) Date Added January 21, 2020 09:41 PM EST 3 IDs Research Grade View Sizes small medium large original