I have 9 hens altogether, 8 RIR and 1 Leghorn. They have a nice safe coop, they have clean water, I give them the same laying pellets I have always given them mixed with hen scratch, I have oyster shells laid out for them for whenever they want it. They all look healthy to me, I see no issues with them acting funny or looking sick. They eat fine and they do get let out every evening to venture out in the backyard and peck around the grass. I give them some scraps but not much. What can be going on? I get maybe 1 egg a day, I haven't gotten an egg from the leghorn in probably 5 months. I have searched the yard to see if by any chance they are laying them there the few hours they are out a day, but haven't found any. What can I do to help them along? I've seen where some people give ceyenne pepper and yogurt but wasn't sure if that was true or not. Anybody else having problems? any solutions?