As for a question about light pollution. We use an infrared light and infrared setting on our camera to illuminate our nest at night. IR light is not detectable by birds and does not contribute to the light pollution that you were inquiring about. I hope that clarifies your concern.
Also, I would like to point you to our on-line community site at www.briloon.ning.com, sign in and catch up on all the happenings at the nest.
Have a great day and thanks for enjoying the cam!
BioDiversity Research Institute