I'm posting this for a friend that isn't on BYC. She has been having birds die left and right. Took one to the vet and was told it was CRD. She has treated with antibiotics, fogged the pen, and is still losing birds. Here is what she sent me to post on here: Crd present in the pen. Eating. Healthy appetite. Will take treats. Drinking. Active. One on medicated feed. One not. Attempts to walk but acts drunk. Topples forward if lean forward... rolls to the side...kicks to regain balance. Can kinda balance if put in an upright position but any attempts to walk and must falls over forward or to the side. Not roosters. Wonder if crd infection is affecting brain. Seems to me to be neurological.