I have four "adopted" adolescent peacocks (1 year olds, still only half-tails but turning that lovely India Blue like their Dad) living in a large run with my chickens here in Virginia Beach. They seem to get along fine - everything everyone has said rings true. The peacocks are terribly curious and were driving the hens crazy by squeezing themselves into the chicken coop so they could line up and stare at hens making egg-laying noises in the nest boxes. I had to make the henhouse opening smaller to discourage them. They mostly ignore the chickens and the banty rooster (I have a very calm rooster anyway), although they go through occasional afternoons of displaying for all the hens with their half-sized, junior tails (full tails won't grow in for another season or two).
The boys are happiest when I keep mirrors around - spend hours gazing at themselves. No effort to "attack" or anything like that, they just turn from side to side apparently admiring the good looking guy in the glass! They are friendly and personable and really keep me entertained -- their previous owner, who had them from egg on, had treated them to cake scraps from the nearby cupcake store... they LOVE cake. They come scurrying if they hear me call, "Mama's got cake, Mama's got CAKE!"
I took the four in when an acquaintance needed a home for them during a difficult period in her life - she wasn't sure she wouldn't be moving shortly - and had hoped to let them free range our farm, as the chickens do. I kept them in with the chickens for several weeks, acclimating them to the flock and to me... and then let them out to roam with the hens. They immediately panicked and flew about 1/4 mile distant to the nearest woods and disappeared entirely. They are only blue down to their shoulders at this point and still have the highly camouflaging adolescent plumage... you'd think we'd see those heads, but no. Folks reported them here and there.... We spent almost two weeks searching for them. One came home (here) on his own. Actually, I called him in the last few fields by playing peacock calls on YouTube over my laptop. (Oh, the things we do for our poultry pals!) The other three ended up at a neighbor's house, having traveled about five miles and crossed a small river. Amazing. They had no desire to come "home" and were most happy exactly where they had ended up but the residents there didn't like them (well, one did and one didn't - it was a bit of a family argument) and we had to capture them and bring them back.
Now they are back in with the chickens and I'm afraid to let them out for fear exactly the same thing will happen. I'd love to find loving homes for three of the four... or all of them because I think our farm is too open for them. They seem really happy with tall pines and trees they can fly up into --- and, believe me, a hop of thirty feet is nothing for these boys. Right now I have to come up with a way to integrate two perpetually IRATE banty hens and their peeps with the rest of the flock and those girls are going to have a gasket blown when the peacocks come to investigate, which they will. I don't think the peacocks will hurt the peeps but they might peck out of curiousity -- and they are SO much bigger!!! So we're trying to figure it all out until we can find a good home for the boys to go to. It was obvious that at the right site they would move in and stay happily. Anyone near Virginia Beach love peacocks????