Hello! I've read a lot on here about integrating younger chicks with your existing flock, but I haven't seen much about adding new chicks in with chicks you've already had. I have (approximately) 2 week old chicks that I've had since they arrived at the feed store. I assume they arrived at the feed store at a couple days old but I can't be sure. I could provide a pic if it would help determine they're age. Can I add in new chicks with them without any issues since they are so young? Or do I risk the new additions being pecked and picked on? Should there be a certain age of the new chicks?