In this note I attempt to clarify the winter range and population density of the Sora (Porzana carolina) in Oregon, Washington, and British Columbia by using data from Christmas Bird Counts (CBCs) and other sources. The Sora’s principal winter range extends from the south Atlantic and Gulf states west through central Arizona and northern New Mexico to central California and south into South America. The species “occasionally occurs in winter north to extreme southern Canada and the northern United States” (A.O.U. 1983). Most Soras migrate out of the Pacific Northwest by September, although later migrants have been noted, e.g., as late as 8 November 1987, Malheur National Wildlife Refuge, Harney Co., Oregon (Littlefield and Cornely 1984). A late fall record from Washington is for 6 November 1980, Moses Lake, Grant Co. (Rogers 1981). Soras typically return to western Oregon, Washington, and British Columbia by early to mid-April, arriving on the coast a week earlier and east of the Cascades a week later than in the interior valleys (Cannings et al. 1987, Littlefield 1990, Littlefield and McLaury 1973, Paulson 1990, pers. obs.).