Wildlifeof Thailand
Knob-billed Duck
Anatidae
Photo: Vsevolod Rudyi · CC BY 4.0 (May be cropped or resized)
Sarkidiornis melanotos
Basic stats
Diet
Seeds, aquatic vegetation, invertebrates and small fish
Habitat
Freshwater marshes, lakes and flooded grassland
Range
Tropical Africa and South Asia
Clutch size
6–20 eggs
Size
56–76cm
The knob-billed duck is a large black-and-white tropical duck; adult males carry a conspicuous black knob above the bill. It frequents freshwater marshes, lakes and flooded grassland in Africa and South Asia, often perching and nesting in trees. Groups dabble or graze for seeds, aquatic vegetation, invertebrates and small fish, moving locally as wetlands fill and dry (Wikipedia, general species account). It is Nationally Endangered (Thailand Red Data 2025).
Quick answers
- What does the Knob-billed Duck eat?
- Seeds, aquatic vegetation, invertebrates and small fish
- What habitat does the Knob-billed Duck live in?
- Freshwater marshes, lakes and flooded grassland
- Where is the Knob-billed Duck found?
- Tropical Africa and South Asia
- How many eggs does the Knob-billed Duck lay?
- 6–20 eggs
- How big is the Knob-billed Duck?
- 56–76cm