western sandpiper flying at seaside

animal bill bird birding birdwatching breeding cheeks coastal colorful crown droopy feather feeding females long longer plumage rich rufous sandpiper seabird seashore shorebird shoreline shoulders shows small tones western wildlife flying seaside nonbreeding plain pale gray white juveniles look pale-faced bright strip feathers edge wings semipalmated shorter-billed duller grayish-brown distinguish winter larger-headed front-heavy dunlin smaller paler breeds high arctic tundra alaska migration occurs large flocks mudflats beaches common north america