western sandpiper feeding at seaside beach

shorterbilled birdwatching semipalmated grayishbrown largerheaded nonbreeding distinguish frontheavy sandpiper shorebird shoreline shoulders juveniles palefaced extremely difficult migration undefined breeding colorful wildlife lakeside feathers mudflats birding coastal feather feeding females plumage seabird western mudflat seaside smaller beaches america animal cheeks droopy longer rufous bright duller dunlin breeds arctic tundra alaska shows small tones beach plain white strip upper wings paler bill bird long rich pale gray look high mud