When can I put my week old silkies in the coop with my 8 week old standard size girls?

[tbatz11]

I'm getting two week old silkie chicks tomorrow (5/31). I currently have 4 8 week olds. 2 buff orps and 2 americaunas. How long should I wait before introducing them and moving them into the coop?

Also, my coop is 4ft x 4ft (insulated, so the actual sf is smaller) with a 4x10 run plus run space under the coop. I have plans to make the run bigger, but is the coop big enough? There's a ladder for roosting. The only way to "expand" my coop is to cover the area under the coop with wood and have it be multilevel.

 

[esme13]

I probably would wait a month to see how the silkies catch up in growth to the larger babies and go from their. However I would introduce them outside and see what happens, this way they get to learn of each other on a neutral ground. The coop size should be ok, I think 6 would be the maximum for your coop. Your run seems good.