12 Most Beautiful And Unusual Ducks In The World

Knob-billed Duck: The Knob-billed Duck, also known as Comb Duck, is a unique species because of its large black knob on the bill from the male birds. The species are found in tropical wetlands in Sub-Saharan Africa, Madagascar and south Asia. They are one of the largest species of waterfowl. The adult ducks have white head freckled with dark flanks. The neck and the underparts are white. The upper parts are glossy blue-black with bluish and greenish iridescence.