I have about a 2 year old Americana hen. She's the original of the fourr that we had. She hasn't laid eggs for about a year. In the last week she hasn't jumped into the coop when it gets dark. She just stayed outside so we set up a separate house for her. Even so we have to lift her up and put her in. She's eating and drinking but moves slow. When try to pick her up and do he's doesn't try to get away. Is she just old. Last time she was in the coop she jumped out and almost fell and hit her beak.