Okay, I've been reading up on the lengthening of "daylight" hours by using artificial light with timers, but I've run into, maybe, a problem! When I first got my ducklings my Mom told me to leave a light on for them at night, that it would help keep them calm. I have done that continuously since I got them. My question is: am I stressing them by doing this? And, I suppose now it would be difficult/stressful on them to reduce that? I have 1 Khaki Campbell and 2 White Layers; they're all 16 weeks old.