I have two groups of peafowl that I am moving to a new penned area. One group of three were hatched on May 5, 2018 and the other group of three on August 3, 2018. That makes three at 9 months old and three at 6 months old. I will need to apply zip tie leg bands before I merge the two groups. I have not done this before. Any suggestions on the best way to do this to minimize trauma to the birds...and to me? LOL No, seriously.