Knob billed Duck eBird Knob billed Duck (Sarkidiornis Melanotos) Commonly Found in Sub Saharan Africa and South Asia Stock Image Image of biodiversity, behavior: 326401309 The knob billed duck (Sarkidiornis melanotos) is today's Species of the Day. It is native to Sub Saharan Africa as well as parts of South Asia, particularly India. It was once treated as the Portrait of knob billed duck (Sarkidiornis melanotos), Tanzania Photographic Print Panoramic Images AllPosters.com The knob billed duck (Sarkidiornis melanotos) or African comb duck is a type of duck found along the tropical sub tropical wetlands and waterways of Sub Saharan Africa and the island of Madagascar, as