donrae
Rest in Peace -2017
None of my broody hens would have adopted chicks this long after hatch. After about 3 days, they've identified who is "theirs" and who isn't. Any other chick is seen as an interloper and driven away.
If you're determined to try, be available constantly to be able to pull them out and have the brooder ready to go.
I"m also a huge advocate for raising chicks in the flock. My rooster won't tolerate other hens doing more than giving a chick a manners check peck. The flock teaches them good manners, and they're seamlessly part of the flock from day one. You do need enough space, and appropriate feed and water stations though.
If you're determined to try, be available constantly to be able to pull them out and have the brooder ready to go.
I"m also a huge advocate for raising chicks in the flock. My rooster won't tolerate other hens doing more than giving a chick a manners check peck. The flock teaches them good manners, and they're seamlessly part of the flock from day one. You do need enough space, and appropriate feed and water stations though.