Photo 2034825, (c) Paul Prior, some rights reserved (CC BY), uploaded by Paul Prior

Attribution © Paul Prior some rights reserved Uploaded by paul_prior Source iNaturalist Canada Associated observations Photos / Sounds What Knob-billed Duck (Sarkidiornis melanotos) Observer paul_prior Date October 30, 2014 Place Antananarivo (Google, OSM) Date Added June 22, 2015 03:48 PM EDT 8 IDs Research Grade View Sizes small medium large original Copyright