I have 3 red sex link chickens that were born the beginning of March. They all started laying eggs at 5 months and I got 3 eggs a day for months. For the last month I have only been getting 2 eggs a day every day. I don't know which chicken isn't laying. I have checked them all for crop problems and egg stuck. They are all eating and all acting perfectly normal. Is it normal for chickens to just stop laying eggs at such a young age? Thanks! Tamma