Do I leave food in the cage at all times Please? I also worry about leaving my bird in the dark . I work night from 8pm until 8am. Is it best the cover the cage with a cloth when I leave the house at 7pm or is it too early. I was leaving the lounge light on until I read that they don't sleep unless its dark. Any advice would be a good help as I really want to do whats best for my bird Poppy. Thanks.