- Anas poecilorhyncha
At 58-63 cm (23-25 in) slightly bigger than a Mallard.
The body is blackish and heavily scaled. The head is withish with a black cap and eyestripe. The terminal half of the inner tertial are white and the bill is black with a yellow tip. Males of the nominate subspecies and haringtoni have a variable red spot at the base of the bill, haringtoni a smaller one.
Shows a green speculum in flight.
Was formerly considered conspecific with Eastern Spot-billed Duck.
There are two subspecies:
- A.p. haringtoni in East Assam, Burma, South China and Laos
- A.p. poeciloryncha in the Indian Subcontinent.
Various types of wetlands, at the coast and inland. Prefers shallow water with vegetation.
May move seasonally.
Breeding season variable. Usually in single pairs but may form loose small colonies. Nests in a pad of vegetation on the ground or in trees, always near water. Lays 7-9 eggs.
Feeds vegetarian, mostly seeds, parts of grasses, sedges and aquatic vegetation. Only occasionally water insects are taken. Like other dabbling ducks this species feeds head-dipping and upending in the water.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- BirdForum Opus contributors. (2021) Indian Spot-billed Duck. In: BirdForum, the forum for wild birds and birding. Retrieved 6 May 2021 from https://www.birdforum.net/wiki/Indian_Spot-billed_Duck