I've designed a nest box for robins that you can put a camera in to watch the fledglings.

I'm trying the one linked above, but the beauty of this box is the top is removable so it can be altered for a camera of your choice.

Only problem with the endoscope is! it has an auto off that you can't turn off. Heading back to Tapo cameras. 

I've added a print profile for a top that can house a Tapo C100 camera.

I used a clear filament on the side panels to let daylight in for better viewing.