Inside the nest box.

I managed to get a shot, via the nest box camera, when a tit was in the box checking it out.

The inside of the box is fairly light as there are built in "windows".  All nest boxes needing a camera have holes in the side covered with translucent plastic.  After dark, the inside of the box is "illuminated" (I am not sure illuminated is the correct word) by infra-red bulbs which show no visible light.  No doubt at some point, I will blip a nighttime shot.

Unfortunately with a fixed camera composition of the photo isn't easy.