A couple of days ago, we lost a 7 week old barred rock. She was in the brooder with two silkies (also 7 weeks) and was acting normally that morning. Checked on them a couple of hours later and she was stiff. Could she have been injured by one of the others? They were a bit bigger than she was but she seemed to hold her own with them. One silkie likes to peck and chase and flap her wings at them but I didn't think she would injure her to the point of killing her. Anyone have any feedback? We are looking to replace her from the lady we got all our chickens from (same age barred rock). She was my favorite and had a cute, sassy little personality.