Halle

Your eyes adapted, his did not stop reading it. Hang something lined on that window before you move anything else. It is the cheapest test in the thread and it takes an evening to answer.

Living room is the whole answer, probably. Cover on at ten does not help if the television is on until midnight and you are talking over it. He is a flock bird, you are the flock, and what he can hear he wants to join.

Light does the same job. A screen, a lamp, a streetlight through a gap in the curtain, a phone. Tiels read light as the clock, and they want somewhere in the region of ten to twelve hours of dark and quiet. A cover over a cage in a room that is still awake gives him the dark and none of the quiet.