I use keets with all my turkey poults and pea chicks. I have never had one aggressive but only keep them togather for the first week because they do get flighty and dont want the turkeys and peas to be that way. I hatch about 400-500 keets and 400 poults every year with no problems. I don't have as much experience with pea chicks but they are very close to turkey poults with the exception of diet.
Yep, Peachicks are alot like Turkey poults when hatched kinda dumb we also use keets or Ornamental Pheasant you don't have to teach these guys anything.