Since the late 1970s, broad-scale surveys for the Snowy Plover (Charadrius alexandrinus) have been conducted in many western states (Page and Stenzel 1981; Wilson-Jacobs and Meslow 1984; Page et al. 1986; Herman et al. 1988; Halpin and Paul 1989; Page et al. 1991). In California, surveys of the breeding population have covered the entire state (Page and Stenzel 1981; Page et al. 1991), whereas surveys of the wintering population have focused mostly on the coast (Page et al. 1986).