Photo 4945087, (c) Thomas Koffel, some rights reserved (CC BY), uploaded by Thomas Koffel

Attribution © Thomas Koffel some rights reserved Uploaded by tkoffel Source iNaturalist Associated observations Photos / Sounds What Ring-necked Duck (Aythya collaris) Observer tkoffel Date April 15, 2015 05:54 PM EDT Place Comté de Kalamazoo, Michigan, États-Unis (Google, OSM) Date Added September 20, 2016 04:28 AM CEST 3 IDs Research Grade View Sizes small medium large original