We have 11 hens that are about 4 1/2 months old. Our neighbors got theirs around the same time we did. They want to give them to us and we are more than glad to take them. My question is should they be separated from our hens for awhile or can we put them right together? They're giving us 6 hens and they're the same exact breed. What are your guys thoughts and/or experiences on it?