- 17.3–24 in
- 33.5–35.4 in
- 20.8–48.7 oz
- 31.5–33.5 in
- Florida Duck, Dusky Duck
- Canard Brun (French)
- Pato Tejano, Pato Moteado, Pato Chaparro, Pato Negro (Spanish)
- Compared to other species of ducks, pair formation occurs early, with nearly 80% of all individuals paired by November. Breeding starts in January, continuing through to July and usually peaking in March and April.
Freshwater wetlands, ditches, wet prairies, and seasonally flooded marshes.
Seeds of grasses, aquatic vegetation, rice, aquatic invertebrates, and a few small fish.
- Clutch Size
- 5–13 eggs
- Egg Description
- Dull white to olive.
- Condition at Hatching
- Covered in down and able to leave the nest soon after hatching.
Depression in grass. Lined with vegetation and down from female's breast.
Dabbles, filter-feeds at surface of water, tips-up in shallow water.
Loss of wetland habitat has led to decrease in populations. Numbers fluctuate widely in response to periodic drought conditions. Mallards introduced as pets frequently interbreed with Mottled Ducks.
- Moorman, T. E. and P. N. Gray. 1994. Mottled Duck (Anas fulvigula) .In The Birds of North America, No. 81 (A. Poole and F. Gill, Eds.). Philadelphia: The Academy of Natural Sciences; Washington, D.C.: The American Ornithologists' Union.