The timing and magnitude of shorebird migration has been documented at several areas along the Pacific coast of North America, primarily in California (Recher 1966, Page et al. 1979) and Washington (Widrig 1979, Herman and Bulger 1981). Few studies in this region have been conducted away from the outer coast. In Washington, only Van Velzen (1973) has described shorebird migration at noncoastal sites.