combining new chicks with older ones

[peteandrepete]

I'm new to raising chickens and I bought some cornish rocks peeps and we built our coop and some one gave us 3 brown leghorns (1 roo and 2 hens) when is a good time to intergrate them

 

[Eggcessive]

You really need to keep young chicks separate from grown chickens until the birds are similar in size. When your chicks are out of the brooder and fully feathered at 6-7 weeks, I would probably put the young ones in the coop in a fenced in area or large cage where the older chickens can become familiar with them. Then when they are about 3 months old you can try letting them out together with lots of supervision so no one gets hurt. There will be pecking to show them who is boss, but you don't want anything too rough.