I have 8 new chicks and I'm guessing they are about 2 months old at this point. They are currently inside in a dog crate so I can make sure they are not plucked off by predators. I have taken them out to roam around the yard and get used to their older sisters. Older sisters are egg laying and are between the ages of 1 to 2 year olds (can't really remember). One of the older sisters walked straight up to one of the babies and pecked the hell out of her head (I separated them quickly, no injuries). But now I'm wondering how do I successfully introduce everyone? I don't want the older girls to maim or kill the little ones but they are starting to outgrow the dog crate. I have no idea what to do at this point and any suggestions will be greatly appreciated!