We have 3 hens and will soon be adding a couple of new girls to our household flock. But I have an important question. We will be getting these new chicks from a friend who ordered 5 chicks from a hatchery to supplement his small backyard flock. They are still young at about 6 weeks old and all of the chicks have been kept in his brooder since the day he got them - completely separate from the rest of his flock. I know we will have to wait until the chicks are at least almost as big as our other hens to put them in our coop, which will likely be at least a couple of weeks. BUT, since they have been kept with other chicks in isolation from the rest of his flock, would we still have to quarantine them for another 30 days when we get them? It seems to me that they have, in effect, been quarantined for 6 weeks already - no?