I have a 9 month old Buff Rock hen who is very ill. Yesterday she was standing on one leg and wouldn't leave the coop. I suspected egg binding but did not feel an egg when I checked. Now today she can't stand or move. She's just laying on her side shaking. She won't even open her eyes. The vet here said they can't do much for her. I have her in the house wrapped up. She will eat a bit out of my hands. Last week one of my white wyandottes seemed sick so I brought her in and she seemed better after 4 days inside. Now her waddles are discolored again and she just sits besides preening herself occasionally. Does this sound like Mareks? I'm new to chicken keeping. Thanks!