The Knob billed Duck (Sarkidiornis melanotos) is hard to missthe males grow a huge black knob on top of their bill during the breeding season. Found across Africa and South Asia, these ducks Knob Billed Duck, (Sarkidiornis Melanotos) : r AIDKE Pato crestudo (Sarkidiornis melanotos) The bird in the image is a knob billed duck (Sarkidiornis melanotos), also known as the comb duck. Nikon D500 + Sigma 150 600 mm #rickyrasaniaphotography #tholbirdsanctuary #nikon #sigma #birdphotography #winter #wildlifephotography #gujarat