I am just new again at "henning" as I call it, our hens are just 28 weeks old. We always had chickens on the farm as a young girl but I never paid attention to the ins and outs of raising them, collecting the eggs was the fun part. We have 19 hens total, 6 leghorn, 6 Plymouth barred and 7 Columbian. I am getting 14 eggs on average a day, recently one of my leg horns stopped laying, also one of the leg horns is being quite bossy, she runs from nesting box to nesting box pecking at any hen who dares sit, she gets right in under them. WHY is this happening? WHAT can I do to stop it?