Photo 5822649, (c) Bob Hislop, some rights reserved (CC BY-NC), uploaded by Bob Hislop

Attribution © Bob Hislop some rights reserved Uploaded by rhislop Source NaturaLista Colombia Associated observations Photos / Sounds 3 photos What Ring-necked Duck (Aythya collaris) Observer rhislop Date December 15, 2016 02:19 PM PST Place Heather Farms Park, Walnut Creek, CA, USA (Google, OSM) Date Added December 15, 2016 03:19 PM PST Description Male (Only 2 present on the pond.) 4 IDs Research Grade View Sizes small medium large original