Mottled ducks are found only in North America and are year-round residents. They are found in high densities in the intermediate marshlands of Louisiana and Southern Texas. Their population is very dense in the state of Florida from Alachua County to Cape Sable. However, they are found in the highest numbers in the wetlands around Lake Okeechobee and the areas around the Upper St. Johns River. They are also found in small numbers around the Gulf of Mexico, Alabama and the Mississippi coastal borders (approximately one-eighth of the population). A very small population was found as far south as Vera Cruz, Mexico.
Biogeographic Regions: nearctic (Native )
- Moorman, T., P. Gray. 1994. Mottled duck (Anas fulvigula). Pp. 1-20 in A Poole, F Gill, eds. The Birds of North America, Vol. 81. The Academy of Natural Sciences, Philadelphia, and The American Ornithologist's Union, Washington, D.C.
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