Research into designing birdboxes

For my son's GCSE Design, Technology and Engineering coursework which he's currently working on, he has decided to combine his interests in birdwatching and engineering to create a technologically complex birdbox for detecting the presence of and recording nesting birds. However, in order to complete this task, he needs to gather market research to inform his design decisions. As a result, he has created a short survey and would really appreciate it if you guys could help him out by taking a couple of minutes to fill it in. The survey is linked here and the questions are all quite simple so it won't take too long.

Thanks for your help!