I currently have 7 full grown hens that all get along well and have been laying eggs for a few months. About 2 months ago I got 4 chicks that are now about 3 or 4 months old. I have been raising them inside a pen I built for them inside my garage. Just recently I have been putting the young birds inside a extra large dog cage and placing th cage inside my hens run first thing in the morning before the hens get up. This way the hens can see the young ones but cannot physically interact with them. At night when the hens start heading for the coop to roost I transport the cage with young chickens back into the garage so they can go to sleep. My question is when should I lose the dog cage and let them all live together? Out of the 4 young chickens, I think one is a rooster because he/she is about 3/4 of the size of my full grown hens. The other 3 young chickens are about 1/2 the size of my full grown hens. I know they might get picked on when I let them out of the cage even though the hens dont seem to mind that they are inside their run during the day, but I dont want to risk having any of the new chickens get injured by the hens when I let them out. I have been introducing the young chickens to the hens now for a week. Should I wait or is it a good idea to let them out soon to see what happens?