ok heres my problem. I had 2 polish hens and i got them when they were just under a year old...now that they are just over a year old i come outside this morning to let everyone out for the day and one of the polish hens is laying on the ground dead. NO marks or anything to suspect foul play. however not sure what could have happened. now the other polish hen is just sitting around in the room making a strange whinny noise and refuses to go outside and seems completely depressed. WHAT SHOULD I DO? will my other polish chiken be ok, or are they similar to dogs in that they can die of a broken heart?