I've got 8 (4 mo. old) blue Silkies and am getting ready to purchase some more babies very soon! Would you please advise introducing babies (after they've reached 8 wks.) to the others and more importantly b/c I'm trying to decide colors to order...Will my older roo mate with my younger ones when they reach breeding age? I really want to end up with some splash silkies... since I already have blue I'm thinking of purchasing some whites, but didn't know if I should buy a few blues of the same age or can I count on my older roo?? Does this make sense???