Your birds go along for a sleep schedule that you actually get to set?
I'm impressed.
As I frequently remind the vet every time he asks, the birds are in charge.
My Kumiko{calico macaw} yells at me, usually a single "arc" when he gets to dim in the room – she thinks I turn the sun off, and thinks it's deliberate as far as I can tell.
She's happier with more night time sleep, but she takes naps throughout the day anyway, and her definition of more sleep is lights out between midnight and 1 o'clock in the morning.
Back to the schedule thing, once upon a time we tried to make that work with the smaller species of birds in the house. Only the cockatiels and budgies would go for it during the years they lived by the bay window – and that kind of required enforcement, because being covered doesn't mean that bird is actually asleep. Also, cockatiels are prone to night frights, so complete dark wasn't exactly possible anyway.
Valentino(CAG) was absolutely adamant about being absolutely everywhere and his solution was to stick his head in my dad's armpit until my dad actually went to bed around four in the morning {not sure how he stood the smell ;-)
This was their nightly ritual for years: TV in a very brightly lit room on a recliner, armpit sleep, and then upstairs to bed about two hours or so before sunrise.
Alex(red factor Canary), was completely indifferent to the day night schedule
thing.
Two of the budgies{rainbow and beanie}, as well as cheeky the grey cockatiel, had an entire room to their selves {separately} with a window that was artificially shaded from light with an actual pulldown shade. These three birds absolutely set their sleep schedule by the TV – none of which had any interest actually watching it, but liked it as a personal nightlight. My hearing is beyond the normal hearing range on both ends of this spectrum, so I could hear the TV at the zero setting with that particular model – it didn't have a mute button, and my room was right next to this one, so at times it drove me batty having that thing on while I was trying to sleep. Eventually reached a compromise by buying a TV with a mute button
Eventually, I'm going to install sleep timer to an outlet attached to a lamp in Kumiko's room. Right now, I'm still trying to figure out a better compromise though – decades of quasi-insomniac birds makes any normalcy concerning sleep bit strange to me ;-)