Peachicks are quite delicate for their first 2-3 months of life. They are very suseptible to parasites and predators. It is best to keep them on raised wire until they are at least 2 months. They need to have a brooder light in their brooder that is around 90 degrees F for the first week or two(make sure they have somewhere in the brooder to get out of the beam of the light so they can cool down) then it can be slightly moved farther every week. They are fed starter crumble with 20% protein. They need water at all times but make sure it is not deep because they can and will drown themselves or eachother. I have noticed that peachicks will sometimes pick out one in the brooder and peck at it constantly (especially its eyes), the way I have found that works the best to stop this when it happens is hang a CD or DVD in the brooder and they will peck at it instead.
Once peafowl surpass the age of one they become very hardy birds. They can live in very cold climates. It amazes me the temperatures they can handle, I live in Colorado and we all know how bad the weather can get here, and I have had no problems. One thing necessary for peafowl in the winter though, is a place for them to get out of the wind. They also need a perch high enough to keep their tails above the ground. In the spring and summer I feed my peafowl high protein layer pellets which can be purchased at your local feed store, I get mine at Murdoch's. In the winter I feed them a gamebird mix which can also be found at local feed stores. They also love to treats such as oranges, lettuce, and squash. They need regular water changes as well.