I need advise please. I want to get some baby chicks next week. I need to be away for two weeks, first part of May. The babies would be about 9 weeks old when I leave. I have the pet sitter only let the chickens out into the fenced (elec.) chicken yard when I am away and give them 'treat' bags every day. My current flock of 3 hens and one very sweet roo would be in the chicken yard while I am away. QUESTION IS : Would it be safe to let 9 week old chicks out with the big birds at that time ? I do not want to come home to a bunch of dead, pecked to death baby chicks. I have seen people have something in the pen the young-uns can run under that the big birds can NOT fit under. ? Any advice appreciated. Thanks !