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Breeding Range. (Fig. 86). Definite records of nests or dependent young are lacking; however, there is little doubt that this species breeds regularly in the badlands along the Little Missouri River within Slope County. Singing territorial males and pairs are fairly common in this area throughout the late spring and summer. In addition, the species was recorded near Cannonball on June 27, 1916 (V. Bailey) and at Medora during June 14-23, 1921 (Wood 1923).

Breeding Habitat. Slopes and gulches of the badlands that contain thickets of trees. During the daylight hours this species is restricted largely to shaded environs found within thickets of trees. A preference is indicated for thickets composed of evergreen trees, particularly ponderosa pine and Rocky Mountain cedar. When foraging for food at night and during the crepuscular periods, it also ranges over more open habitats that lie adjacent to tree thickets.

Figure 86. Breeding Range of Poor-will.