My two roosters are bantam. Millie Fleur D'uccle, and Bantam Buff Brahma: Henry and Jack. Will they be able to mate with the 7 girls? 2 Silkies, BLRW, Buff Orph, Blue EE, Frizzle EE, Standard size Cochin. They all are now 19-21 weeks of age. And will be laying any day now. Still feeding them starter/grower feed, and introduced oyster shells a few weeks ago. And once a day some tomatoes and corn. And just put the nesting boxes in today. So whats next?