I have (had) 4 week old chicks and 3 4 week old chicks in separate brooders. I just found one of my little babies dead. She was fine the last time I checked in them. Her body is still warmish so I'd say it happen very recently. The others all seem fine but then she did too. What should I do? My 7 year old will be home from school soon and it was her favorite chick. Oh I'm heartbroken! How do I make sure the others are ok?