4,    adults,    animals,    aves,    beaks,    bills,    birds,    blackbacks,    eat,    eats,    flies,    flight,    fodder,    format,    gulls,    lakes,    laterally,    move,    movement,    moves,    outdoors,    outside,    river,    seagulls,    shorebirds,    sunny,    sunshine,    swimming,    swims,