I had an injured chicken several weeks ago that I had to isolate and move indoors until she healed. I reintroduced her to the flock about three weeks ago, but put a heat lamp up to help her transition to the outside temperature. I turned the heat lamp off (a red bulb) today. Will this cause a molt in my hens? Now that the light is off, will my young rooster stop crowing at 3:30am when it's completely dark? Or is this a typical rooster behavior?