Ok so my DH just brought us home our first chicks ever! I have lurked at this forum for last month and caught chick fever from all of you! We thought we were getting RIR however he came home with 6 Gold Sex links which is what came in today at TSP. They are so cute! I have one problem, I can't tell them apart. I would like to just lightly touch each chick's head with a colored marker (diff. color per chick) so I can keep track of who is eating and who is drinking. Would this hurt them? Bad idea? Gosh, not since I had my last child have I been this excited and scared and they are just little darlings!