Bee hotel update

I promised an update on how the bee hotel bookings fared.
Well, every hotel has currently 1 to 2 holes that are filled up with mud/sand. That's not a lot.
The ones I hung near the stables were however already filled the day after. And those silly bees insisted on making the little mud pies on the stable doors. So we have about 5 of them not residing in the hotel.
My guess is I put the hotels up too late this season. And some of the shrubberies with early flowers died because of the very late frost. All my lovely smelling skimmia froze, I need to take them out.

Also, we've had some guests in the spy-hole in the front door. A threesome of paper wasps have been there for about two months now, steadily building their little paper hive.
They're not agressive, they don't mind us opening and shutting the door. They're not flying into the house by mistake.
We've decided to let them stay for as long as the door remains there, we will be replacing it anyway together with the new windows.