While certainly not one of the more scenic sites in Oregon, Fernhill Wetlands (Birding Oregon p. 61) always attracts some noteworthy birds.
Least Sandpiper (left) and Western Sandpiper (right) are two of the more common shorebirds that use the mudflats at Fernhill. Both birds are juveniles (brightly colored fresh plumage, scapulars are small and rounded). The Least has a small, finely-pointed bill, yellowish legs, breast streaks, and feeds while squatting low to the mud. The Western has a longer drooping bill, dark legs (hidden in the mud), is grayer overall, and looks “front heavy,” like he might tip forward.