My friend bought a new house. The owners left behind 2 hens and said that the hens were a little old... no age. It is spring time, warm and beautiful and her hens won't go out of the coop! She has an acre of fantastic weeds and she has to toss the chickens outside each day because they will not venture out. The hens don't lay either. I am supposed to give her two of my egg laying hens on Thursday... My friend doesn't want to get rid of them... Why are they doing this?