In North America, the Northern Hawk Owl (Surnia ulula) breeds across the boreal forest of Canada and Alaska and is generally rare and irruptive in the coterminous United States (Duncan and Duncan 2014). Over the last two decades, multiple instances of breeding have been documented in northern Montana and Washington (Jessica Larson, Owl Research Institute, in litt., 2015; Washington Bird Records Committee [WBRC] 2015), suggesting that it is a rare but regular part of the breeding avifauna of the interior Northwest. In the last two decades 32 attempts at nesting have been documented in Glacier National Park and the nearby Flathead National Forest in northwestern Montana (J. Larson, in litt., 2015), as have two in Okanogan County in north-central Washington (WBRC 2015). Prior to 2014, there was a single breeding record in northern Idaho in 2001, at Snow Lake in Boundary County, and two additional summer (July and August) reports from northern Idaho (Idaho Bird Records Committee [IBRC] 2015). Most of the prior reports from Idaho (22 in all, nine confirmed; IBRC 2015) were in late fall or winter, supporting its status in the state as an irruptive visitor, predominantly in the nonbreeding season.