Hi there! I'm looking at getting my first chickens this April, from our local farm store. They just announced their chick schedule, and to get the pretty variety-pack I'm hoping for I'll have to buy two one week, one the next, and two the third week. The farm store staff said that as long as they were within three weeks of age, I shouldn't have trouble, but I wondered about introducing a loner. Am I likely to have problems if I add one chick to two? (The coop and run I'm building should be fine with six, but five is the legal limit in my town. I know not all chicks make it, but if I started with six Murphy's law would give me an illegal number of chickens).