If you have a "closed flock", does it mean that you do not bring/allow chickens from outside sources on your property? I no longer consider myself as having a closed flock since I do occasionally buy/get chicks. However, I do practice biosecurity and prefer not to let visitors tour my property/chicken coops. I've heard that disease can be spread just as easy that way as it can be by bringing in sick birds. I was becoming confused on the whole closed flock thing...some folks say they have that type of flock and yet buy/get chickens (both chicks and adults) and take them home. Someone please clarify for me. I know of a few other people who are confused by this as well.