On 25 February 1973 I discovered a Swamp Sparrow (Melospiza georgiana) at Lake Sammamish State Park, King County, Washington. The bird responded to “pishing” directed at a Bewick’s Wren (Thryomanes bewickii) which was singing from a shrubby line of willow (Salix sp.) and blackberry (Rubus sp.) bordering the parking lot at the park. A Song Sparrow (Melospiza melodia) was also present in the same bush. The bird responded well for several minutes providing four unobstructed views at eye level from a distance of fifteen feet (using 8×36 Bushnell binoculars).