Photo 1946389, (c) Paul Cools, some rights reserved (CC BY-NC), uploaded by Paul Cools

Attribution © Paul Cools some rights reserved Uploaded by paulcools Source iNaturalist Associated observations Photos / Sounds What Knob-billed Duck (Sarkidiornis melanotos) Observer paulcools Date July 12, 2012 Place Niamina West, GM-MC, GM (Google, OSM) Date Added June 1, 2015 07:10 PM BST 8 IDs Research Grade View Sizes small medium large original