Here's some mama hen bonding. A small week old chick got clobbered, prob a territory dispute, I didn't see it happen. A large cut on the body, and a few smaller ones. I pulled the wounds together and let it mat closed....I didn't think it would live...bad wound. I'm also trying a new spray called vetericyn for wounds. After a day, she/he would drink, eat a little. After two days, eating and drinking and walking around more, wound is actually better. I figured some sunshine and outdoors in in order so i went over to the pen...outside the fence. The mama hen came over immediately when this chick peeped, and the chick hopped off to follow her (outside the fence) so I thought what if? I tried it inside and she came over again, looked very closely, talked to the chick, and calmly waked between me and it and led it away. No question she knew this was her chick that mysteriously came home....so she is back to eleven kids. It's been six hours and so far so good, he has been warmed and is feeding on bugs with the others. I keep a check on them and will make sure he gets another spray and back in the coop to night. He is weaker than the others, so still not out of the woods. So that's over three days apart, imprinted.