I hope someone can help.... Yesterday, one of my (Red Star) hens was walking slowly and sitting down every few minutes as if she needed to rest. She's 9 months old. her comb looks normal, her eyes are clear and she has her normal appetite. I checked to see if she was eggbound (she's not). This morning she perked up and all the hens laid eggs. This afternoon, another hen (1 1/2 yrs) began sitting down every few minutes. I feed them agway layer feed , provide water & calcium at all times and for treats, lettuce, popcorn, sunflower seeds & cheerios. They did not eat anything they shouldn't have and no strange droppings or smells. Does anyone know what's happening?