Marking chicks

[DisabledMan]

Ok we put in an order a few weeks ago from Cackle Hatchery of Bantam Cochins in like 3 different colors and in each color we ordered Hens and atleast one Roo. They suppose to ship Wednesday and I forgot to ask , so I figured someone here could help .
My question is being this will be my first chicks ordered , will the Roos be marked somehow so I can tell difference ??

Thanks in advance

 

[nuthatched]

Last time I ordered chicks from Cackle, my roos had a dab of green paint on their heads. The shipping invoice, usually under the nest pad will usually have some information on marking.