Fig 1. Two study areas established in Mountrail County of western North Dakota used to monitor sharp-tailed grouse nests and their nest predators in 2012 and 2013.

Belden served as an area of intense oil development, whereas Blaisdell served as an area of minimal oil development for comparison. The dashed line within Blaisdell represents its boundary in 2012, and points represent active oil wells during our study years.