1,    a,    adults,    anatids,    animals,    aves,    bank,    birds,    canards,    cleaning,    cleans,    ducks,    females,    format,    lakes,    laterally,    mallards,    outdoors,    outside,    preening,    preens,    river,    riverside,    shores,    solo,    swimming,    swims,    waterbirds,    waterfowls,