I have a total of about 20 chickens that are at laying age and were doing fine. I had a hen go broody and is sitting on the nest now. I have left her alone due to advice to do so. But since, my egg production has decreased big time. I was getting 12 eggs a day, then dropped to 10, then 9, 8, 7, etc...Today I only got one egg...could her sitting cause this? I have paid close attention and nobody seems to be sick. I do have a couple molting. I don't know what else it could be. Does anyone have any ideas?