I am going to get an Australorp as soon as I can find one. However, I can only get ONE to add to my existing flock of 3 hens. (how is this possible without Chicken math?) I have read that introducing a chick alone is unfair, but I really want to make this work. Once the chick is old enough, how should I put her in? Will there be any problems if she's alone as a chick? It's winter and the only available space for her is in the garage, where it could get pretty cold in there. Will a heat lamp be enough? Any help is appreciated!