female; mottled head; white underparts; dark above (Zoo; 2008-10-21)
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Knob-billed Duck
Sarkidiornis melanotos
Native Range:
Africa and Oriental Region
Notes:
the male during the breeding season develops a large knob at the base of his bill, and this protuberance gives the species its name; nests in tree cavities; found along rivers and lakes in woodlands.
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