COMB / KNOB-BILLED DUCKS (SARKIDIORNIS MELANOTOS) Published on December 3, 2012December 3, 2012 by Rolling Harbour COMB / KNOB-BILLED DUCKS (Sarkidiornis melanotos) 1. The male, with the characteristic prominent knob on its head 2. The female comb-duck. Both sexes have wonderfully coloured feathers, though the females are less bright Share this:Click to email a link to a friend (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to print (Opens in new window)Like this:Like Loading... Related