I have 10 chickens, all 10 months old: Black australorp, buff orpington, white silkie, black laced Wynadotte, golden Wyandotte, cinnamon queen, light brahma, black sex link, Plymouth barred rock, Easter Egger. They all get along well. I built a beautiful coop 10x 12 ft and have an attached run with canopy and then a very large run, fenced on the sides with bird netting on top to keep out hawks. The canopy covered run is completely predator proof with hardware mesh on the sides, under canopy and on the ground buried one foot under the entire inside of the coop. I would like to add 6 more chickens, again all different breeds. I raised my existing chickens in the basement which worked well last year, no drafts, very nice space. I plan to order a silver spangled Hamburg, welsummer, back copper Maran, speckled Sussex, salmon Faverolles. Im just wondering how to best integrate them into the existing flock when they will be ready to go outside. Thank you for your advice.