A close relative of the Semipalmated Sandpiper. Western Sandpipers nest mostly in Alaska and migrate mostly along the Pacific Coast, but many reach the Atlantic Coast in fall and remain through the winter. Of the various dull gray sandpipers to be found commonly on coastal beaches in winter, Western is the smallest.
Source: audobon.org
Cache can be accessed with two feet on the bike path. No parking on PCH. Park at the free lot at the parking waypoint. Don't climb over the guard rail.