I have a flock of 16 guineas...they can get quite loud when their all screeching at the same time
As for raising a lone peachick, I do NOT reccommend it. Males can get "berserk male syndrome" which is very dangerous for the bird and the owner.
Quote:
BERSERK MALE SYNDROME: Be wary of getting too friendly with your peafowl. Feeding them from your fingers, holding and cuddling chicks, and trying to pet older birds can set you up for injury or tragedy. Males are especially prone to develop an unhealthy, too-aggressive attitude towards people during their "teenage" period, from 6 months to 2 years old, if treated with too much familiarity. Females can become mean, too, but are less of a danger because they lack sharp spurs at maturity. Between 6 months and 2 years of age, look but don't touch. Let the flock teach the youngsters proper manners. Berserk Male Syndrome CANNOT be cured. For your own and others' safety, dangerous males must be
killed.
(
https://starshine-ranch.com/PeaCare.htm <--- article)