The Eastern Phoebe breeds from the northern Canadian provinces south to the Gulf Coast states (Sibley 2014). This species winters in the southeastern U.S., with highest numbers along the Gulf Coast (Weeks 2011). In Montana, this species has several records over the past decade (Montana Bird Distribution Committee 2012).
For a comprehensive review of the conservation status, habitat use, and ecology of this and other Montana bird species, please see Marks et al. 2016, Birds of Montana.