Hello! I have Welsh Harlequin ducks. I have three females and one male. A while ago, my ducks stopped laying because of their first mult. Their mult has just finished for the females and just started for the male. The females haven't laid in over three months. I am getting so frustrated and I am finding no answers! They are on an organic laying feed and a de-wormer, so I know they don't have worms. HELP PLEASE!