Throughout much of the eastern United States, Eastern Screech-Owls are found in forested habitats consisting primarily of second-growth timber. Consequently, natural cavities for nesting owls may be the limiting factors for their distribution. In areas where natural cavities occur at low densities, Eastern Screech-Owls nest in a variety of sites, including nest boxes (Van Camp and Henny 1975, McComb and Noble 1981, Fowler and Dimmick 1983, Gehlbach 1994a). In areas managed for waterfowl, observations of Eastern Screech-Owls using Wood Duck nest boxes are common (Bell rose and Holm 1994). but this is the first account of an Eastern Screech-Owl incubating and hatching a Wood Duck egg.