my chickens haven't laid eggs in about a month, I don't know what is wrong, it is not their age because they have just turned a year old or are close to a year old, and I have 2 pullets that are 5 months old and should be laying soon. I have only got 1 egg this entire month. I spent time sealing up the coop and locking the nesting box closed to keep animals out. they have access to water all night and day, I refill the buckets inside the coop just before I put them in for the night. They are also able to free range all day plus I feed them chicken feed twice a day with supplements to help with egg production, and I give them healthy snacks throughout the day so I do not think it is poor nutrition or lack of water. I also see no signs of predators getting into the coop nothing is disturbed no egg pieces or yolk goo. I have a large fence surrounding the entire coop a fenced in run area and double layered chicken wire in all the coop windows and my coop is elevated 3ft off the ground and I don't notice anything disturbed. They also have been showing no signs of illness their poop is healthy looking they are not molting they have nice feathers, no lice or mites, they are playful, and running around with no signs of weakness. I am so confused about this I just don't get it . and now we are having to buy store bought eggs. I don't know what to do.