The white-rumped Sandpiper breeds in the high Arctic and winters in Patagonia. The species is an uncommon migrant to Montana with fewer than thirteen observations reported in the typical year, most of which are in the eastern part of the state (Parmelee 1992, MTNHP 2019).
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.
Direct Evidence of Breeding
Indirect Evidence of Breeding
Montana is west of the main migration path.