In regards to the feral Bees found in the wall. If you know of some one that
can Instrumentally Inseminate Queens, it would be simple to collect the
drones in the Pm with a peice of queen excluder over the hole in the wall.
they not being able to pass through the excluder material could be caught
returning to the hive. The only other thing that I can suggest is a hammer
and some nails.
 
Dean