2,    adults,    amphibians,    anatids,    animals,    aves,    beaks,    bills,    birds,    canards,    ducks,    eat,    eats,    fodder,    format,    frogs,    lakes,    laterally,    move,    movement,    moves,    outdoors,    outside,    pochards,    river,    sunny,    sunshine,    swimming,    swims,    waterbirds,    waterfowls,