arctic tundra swans, cackling geese and ducks wintering in the m

america and animal ankeny annual arctic background beautiful bird black blue branta cackling canada columbianus county cygnus duck ducks elegance flock geese goose graceful group holarctic hutchinsii marion mid migrate monogamous national nature north oregon refuge resting smallest swan swans tundra valley water waterfowl western whistling white wild wildlife willamette wintering