Hello, I have a problem. A friend of mine husband had a stroke, and they have to get rid of their 7 or 8 chickens. They are mainly Cherry Eggers,about 2 1/2 years old. I have 5 hens and 1 rooster, 1 1/2 years old, mainly Sussex, blue orpington,and buffsomething. I'd like to take their chickens, but am not sure how to introduce them to each other. My chicken yard and coop can handle the addition plus our chickens run in our fenced garden every day. (we open their door each day) What do I need to do?