How can i intoruduce pullets

[FrahmChicks217]

It really depends on the breed of the more mature birds. I used to have Colombian Red X and they are just cannibals. One day one of the 8 week olds found a hole in the fence that I never noticed before and went over to the mature birds, it was just awful when I found what was left of it. Since that experience I never even tried to mix birds of different ages until the younger ones had fully matured. But then again, all of yours are still very young, hence, with good supervision, you will hopefully ok.

That's what I'm afraid of. But I'm praying since they're so close in age they'll be ok.