Photo 686999, (c) Liam O'Brien, some rights reserved (CC BY-NC), uploaded by Liam O'Brien

Attribution © Liam O'Brien some rights reserved Uploaded by robberfly Source iNaturalist Associated observations Photos / Sounds What Canvasback (Aythya valisineria) Observer robberfly Date February 23, 2014 01:37 PM PST Place Lakeside Park, Oakland, CA, US (Google, OSM) Date Added February 23, 2014 03:52 PM PST 1 comment 5 IDs Research Grade View Sizes small medium large original