I have read on several threads that one should quarantine new birds brought in no matter the source. My question is if I buy several birds or chicks at once from an auction and they are from different sources do I quarantine each batch from each other? like I buy 12 lots of 3-4 birds do I need 12 different pens for the birds if I start from scratch with no other birds on site? Or can I put them all together with medicated feed and medicated water for a few weeks and hope they all turn out okay? and is there any different process for doing the same thing with chicks with no existing adults on site? like if I got 2-4 lots of 15-20 chicks do I need to separate all the chicks or can I medicate them all in the same pen for a few weeks until I am certain they are healthy. I am not into medicating healthy birds but I realize they may be carriers of some diseases and if they are medicated from day one should help insure they stay healthy. also it is about an hour and a half from the auction barn to my house and checkout from the auction's cashiers window is 15 minutes to a half hour and all the birds at that auction house are stacked in close quarters and may be there for several hours from the time they are delivered until they are auctioned off. The auction barn in question is very popular and the small animal auction runs as long as 6 hours alone and the animals are accepted as early as 9 hours before the sale. if that info helps.....