I have a friend who is moving out of state and has to let go of her 2 hens. They are 3 years old and the Leghorn still lays eggs daily but the RIR not so much since the weather turned cold. I have agreed to take them in to join my 3 that are 7-8 months old. 1 is laying regularly and the other is doing all the actions of getting ready to do so. I know how they are fed, treated and her girls eat the same organic feed that mine does as well as many similar kitchen scraps and treats. They appear to be completely healthy. Other than separating them till they get used to each other, is it still necessary to quarantine them in completely different areas of the yard? I wouldn't think so since I am familiar with them and their upbringing but want to make sure I am not missing something here. We both free range during the day. It would be easy for me to take my tractor coop for the newbies and attach it to the opposite end of the run so they have separate coops but a shared run and free ranging together. I need thoughts and ideas on this please.