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: Email a link to a friend (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on Reddit (Opens in new window) Reddit Print (Opens in new window) Print Like Loading... Related