i have 3 silkie chicks that are 5.5-6 wks old. one has a distinct comb and is quite outgoing. i think he is a roo. one really has no comb and is sweet but shy particular around the other chicks. i'm pretty sure she is a hen. the third has a small but bumpy comb--not too sure. we also have 1 barred plymouth rock, 1 white australorp, 1 speckled sussex, and one ameracauna--all 6 wks old and quite definitely hens. We had hoped for all hens but are wondering if we have just one silkie roo, if he will mate with the standard size hens or just the silkie hens?