Hello and a quick question

Hi All, being new to this I would like to say hello and I am looking forward to being part of the community. I have an initial question and I don’t know where to ask it, maybe someone can point me in the right direction. Here is the question anyway. 

I have spent the last few days making a new camera bird box for tits out of some teak I had from an old bench. I know I can’t paint the inside so the question is, can I put a couple more  round ‘windows’ on either side covered with some sanded Perspex to allow more light in and give my camera more time to operate in colour before going infra red. The box is twice the height so that I can now see the entrance hole as well as the complete nest.

Have a good Hogmany, Bibio55