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The knob-billed duck (Sarkidiornis melanotos), or African comb duck, is a duck found in tropical wetlands in Sub-Saharan Africa, Madagascar and south Asia from Pakistan to Laos and extreme southern China.
Scientific Name : Sarkidiornis melanotos
Family : Anatidae
Order : Anseriformes
Class : Aves
Type : Ducks, Geese, and Waterfowl
Conservation Status : Least concern (LC)
Size : 56 - 76 cm
Compare Size : Kite +-
Wingspan : 116 - 145 cm
Weight : 1030 to 2900
Migratory : Resident
Sex Alike : No
Nesting Season : during and after the rainy season
Other Names :
English : African Comb Duck
Hindi : नकता
Marathi : नाकेर, नकटा, नंदीमुखी, नकटा बदक
Habitat:
wetlands
Breeding:
7 to 15 yellowish-white eggs
Feeding:
This duck feeds on vegetation by grazing or dabbling
| Male | |
|---|---|
| Head | white freckled with dark-grey or black spots |
| Neck | white freckled with dark-grey or black spots |
| Underparts | white |
| Upperparts | glossy blue-black |
| Bill | black with a a large black knob |
| Secondaries | bluish and greenish iridescence |
| Female | |
|---|---|
| Note : female is much smaller than male, plumage same as male but bill lacks the knob |
