Okay got 10 free chicks with the purchase of 50# of starter/grower feed. All that was promised was they were straight run. 4 weeks old now. I got a few of them figured out. I know they are sicilian buttercup, but are they roos or pullets? Now what about all these jokers? Cochin--roo or pullet? And this white job, he has a few grey spots on his back. He's a biggun too! These black jobs, the larger ones have a brown flecking on their backs.