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Knob-billed duck
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English name:
Knob-billed duck
Wikipedia:
Knob-billed duck
Taxonomy
Parent:
Sarkidiornis
└─ Sarkidiornis melanotos
(Knob-billed duck)
└───
Sarkidiornis melanotos melanotos
└───
Sarkidiornis melanotos sylvicola