just make sure the color isn't red!!
they will peck at it to no end
we just put zip ties (the very thin kind) on our chicks to we can try and keep track of them. I figured up a system of dashes (-) and hash marks ( l ) (( 4 each like this; l, ll, lll, llll, -l, -ll, --lll, -l-, -ll- )). I used a sharpie to make the marks on white/clearish zip ties. we were going to get the colored ones but we would have to put multiple bands on some and that would just be crazy to do and keep up with if they are getting tight on them. I have 16 chicks I needed to band so colors were not really an option. I wrote down of a paper all of the symbols and then tried to write down a few characteristics of the chick to help me better identify them. also if I thought they were roo or pullet....just to see how close we are. hth!