4,    adults,    anatids,    aves,    Babies,    Babys,    birds,    canards,    carries,    chicks,    common,    ducks,    fledglings,    format,    goosanders,    hatchlings,    immatures,    juveniles,    laterally,    move,    movement,    moves,    swimming,    swims,    waterbirds,    waterfowls,