Photo 1491309, (c) karenk, some rights reserved (CC BY-NC)

Attribution © karenk some rights reserved Uploaded by karenk Source iNaturalist Associated observations Photos / Sounds 3 photos What Ring-necked Duck (Aythya collaris) Observer karenk Date January 17, 2015 11:00 AM PST Place Pine Lake Park, San Francisco (Google, OSM) Date Added January 17, 2015 05:35 PM PST 3 IDs Research Grade View Sizes small medium large original