Our chick peeped very loudly all night. It stopped in the morning, (was still alive) and we left all day. When we got home that night around 9:00 PM, the chick was lying flat, face down, dead. We checked the temp. of the brooder and it was fine. The chick appeared to have some guts or something hanging out of his rear, but I didn't get a good look. It was getting kind of ripe so we disposed of it ASAP, then cleaned the brooder well. This chick was only a few days old. What happened?