I would not clip their feathers myself..
Back in 1978 roughly.. Forgot exactly what years.. I had 3 Bronze turkeys, 14 ducks, and a few rabbits fenced in a 7 ft high area of free range.
The turkey would fly out so I clipped them.. The next day my dang bird dog got out of her pen and somehow got into that 7 ft high fence and killed my 3 turkey that could not fly now.. All 14 ducks I guess was pushed by the dog and must have flown over the fence, because everything was gone.. And I mean gone.. Never found a single duck ..(dead or alive) I did see a few feathers way down in the woods few days later where something had eaten one..
I even had a electric fence all around the bottom to keep varmits from trying to dig under, etc... So how that dog got in.. I have no ideal..
So I'd never clip wings anymore.. Plus being PeaFowl... I certainly wouldn't if I had those.. That would take away from their beauty.