Wetland selection by mallards and blue-winged teal

Mulhern, JH.; Nudds, TD.; Neal, BR.

Wilson Bulletin 974: 473-485


DOI: 10.2307/4162142
Accession: 022099002

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Four years of observations of habitat use by breeding pairs and broods of Mallards (Anas platyrhynchos) and Blue-winged Teal (A. discors) were used to test the hypothesis that prairie-nesting ducks exhibit wetland preferences (i.e., select habitat). Mallard pairs did not select wetlands. Mallard broods selected large wetlands with interspersed vegetation when brood density was low. Pairs of Blue-winged Teal selected wetlands, but were inconsistent in their choices. Broods of Blue-winged Teal consistently selected open wetlands with vegetation of low stature, but patterns of wetland selection by broods of Blue-winged Teal bore no consistent relationship to brood density.