The last time I had peafowl they were 1-3 years old. I was not worming consistently, wasn't sure of the dosage or what form of worming to do. Peafowl died off one at a time, the last was a beautiful blue pied that I bought from Mike Johns in Oklahoma. I did not know anything was wrong until one morning he was extremely lethargic, and was gone the same day. No, I did not 'see worms' in the poo. But the fact that they are extremely suseptible to worms, and I was worming inconsistently makes me think it is highly likely that was the problem, as I'd had them over a year.
Thank you, deerman for the wormer type, and schedule you use. I appreciate it.