We now have a camera in a
third box, but this gives side-on views. There is also a camera showing views from above, but it's an old one that only works intermittently. We're thinking of replacing it before the nesting season starts - it's the one that has been used in Box1 for 6 years.
Here's a pic from the new camera - there are more on our bluetit website, Monday 15th Jan (cont), where there is also info about the set-up.
Malcolm & Elizabeth's Bluetit Pages 