I just got my year old hens a week ago and the 6 hens went from laying 4-5 eggs to 1 egg yesterday and none today. I am feeding them 2 cups of mash and about a handful of a variety of treats (lettuce, oatmeal, rice, ect..). I also give them grit. They will be free range in another week but since they are new I was told to keep in coop for 2 weeks before letting them out. Are they just stressed and so are not laying eggs?