Making themselves at home??

This morning, I went up to Fraserburgh to get my winter tyres taken off the car and normal ones put on. I hope I’m not too early!
A tooth has been niggling me for some time now, so I took the bull by the horns and went to see if the dentist will see me. Its some years since I have been but they said they will see me if it’s an emergency.
I was more than a little surprised when they said they will make an appointment in a couple of days time, even after I explained that it wasn’t really sore.
However, they gave me a time of two thirty which sounds far too much like tooth hurty to me!!!
I put up this bird box half an hour before these blue tits started investigating. How did they know!