I am familiar with the idea of quarantining any new additions to a flock for 30 days or so to eliminate possible contamination. But, what about when you know the source and are reasonably sure that the birds are 100% healthy? We split orders of chicks with my parents so that we each ended up with parts of each shipment. They are from the same hatchery and are all about 8 months old. My parents are looking to cut back on the number of birds before winter, and 15 layers is too many for them because they do not take advantage of selling the extra eggs. On the other end, we have people lined up waiting for our extra eggs, and I'd like to take in 8 or so of her hens. Not to mention, it would help keep our coop warmer in the winter. From all visible signs, they are healthy, so the only thing that I think could be a problem is the establishment of the pecking order. We also have 6 bantam chicks that are 6 weeks old who stay right in the coop with the big girls, so there is a little concern about whether the new hens would realize they are part of the flock or harm them. What do you folks think? Are there any major problems that I might be overlooking? Our coop is 10x12, so we should be able to handle 30 full sized hens going by 4 feet per hen. With an addition of 8 hens, it would put us at 17 large, 3 laying bantams, and 6 bantam chicks (2 of which are male and will be leaving us later). We should be able to support them space-wise. Thanks in advance for any advice.