I've had grown-up chickens off and on for 7 or 8 years now, but never raised chicks. I got five bantam chicks from Tractor Supply, but I wasn't told how old they were. I've had them for about two weeks, and they've developing crests, are scratching around well, and they have been happy with the heat lamp very high up, and hardly getting any heat from it at all. I was planning on putting them in the back yard in a small (probably 1x2 ft.) cage in the daytime and putting them back in their box inside under the lamp at night. The temperature outside is probably an average of 62°. How old they are? And how much can I let them outside? Any information is greatly appreciated. Thanks!