Until 1985, when the two taxa were formally split by the American Ornithologists’ Union (1985), Clark’s Grebe (Aechmophorus clarkii) was long considered conspecific with the Western Grebe (A. occidentalis). As field identification of Clark’s and Western Grebes can be difficult, the status and distribution of these species, particularly the less numerous Clark’s, is still being worked out (cf. Marshall et al. 2003). To understand this species’ occurrence in western Washington better, I reviewed records of Clark’s Grebe submitted to WOSNews, a publication of the Washington Ornithological Society, from July 1993 (when field notes were first published in WOSNews) through February 2004.