We picked up 2 chicks last night to add to our already existing hens. We put them in their own little place with their heating lamp and food and water. Nothing different than what we did when our hens were chicks. We woke up to one dead chick and the other just died. I have no idea what went wrong. I guess they just weren't healthy. A few hours after we brought them home they started showing signs that something was wrong. They wouldn't stand up anymore, they wouldn't put any weight on their feet at all. They would just fall over. It was very bizarre. Any ideas what happened?