I just received ten baby chickens () yesterday- 5 Orpingtons and 5 Australorps. One of the baby chickens (an Orpington) fell over on it's back three times and started making a screeching (loud chirp) noise with it's eyes closed. I got the baby back on it's feet without a problem. It doesn't look hurt and is acting like a normal baby chick and hasn't fell over anymore. Was this normal?