I was wondering, if I were to ship chicks next fall, do they need to be tested if they are under 4 months old when shipped? The NPIP and the other people that test for the fair, dont test birds under 4 months old. Also, how do I find out if my post office ships birds? I went in and asked them, and they had NO clue! They started flipping though the books. Ugh. I might want to ship some Silkie chicks next fall, and I want to make sure I have all in the info. for shipping.