Ref the cage covering issue:- We cover every cage that is not in a dedicated room were the room light give control. My little girl the most receint at 7 years celing high four foot wide closet with double doors that provide full darkness off the living room. I sleep within ear shot of three cocketiel cages which would only receive .a faint glimmer from a nightlight lower than the cage covers. The natural environment of most parrots has close to 12 hours of darknes, also much of the time total with night prowling preditors. Darknes is in my opinion essential. D.D.