Hi all! I have questions about how to introduce new chickens to my current flock. This is my first flock. Ive raised them from a day old. They are 6 weeks now. Two lavender orpingtons are roosters that i need to find a home for. I would like to replace them with two more and am wondering if i should get day olds again, brood them and then add to coop OR if i should try adding 2 pullets the same age. I need lots of advice on how to introduce them too. My 6 week olds are currently in the coop/run all day but havent spent overnight in coop. They dont even go up there to check it out! That is a whole seperare question i need answers for! Its dark and they just would rather sleep in the ground in the run! Thanks in advance for all your help!