Photo 5442233, (c) Janet Zipser Zipkin, some rights reserved (CC BY-NC), uploaded by Janet Zipser Zipkin

Attribution © Janet Zipser Zipkin some rights reserved Uploaded by jzzipkin Source iNaturalist Associated observations Photos / Sounds 2 photos What Ring-necked Duck (Aythya collaris) Observer jzzipkin Date November 3, 2016 01:02 PM PDT Place Marina District, San Francisco, CA, USA (Google, OSM) Date Added November 5, 2016 04:23 PM PDT 3 IDs Research Grade View Sizes small medium large original