Did notice a bit of what I thought was unusual behaviour today.
The gable end of my property has an Air Brick and the Bee's have been using it as an impromptu home. I can only imagine what the cavity of the brick work looks like.
Anyway - airbrick is equidistance of the gable end and the bee's have been finding it without any issue at all - taking the proverbial beeline from their aerial errands.
I had to plant up a trough up and had instructions to relocate the trough in the middle of the gable end - so I didn't do this on purpose but accidently put an quasi ( space around and to the rear ) for the Bee's to have to navigate.
I came back ten minutes later and found a bit of a bee on bee cleared for landing stacking backlog - Ten bee's all seemingly 'lost' - trying to run into the brick work like Harry Potter on the Train platform - scrabbling to find the Airbrick without success - but as I say there was space behind and to the sides of the trough for them to locate the Airbrick , they just seemed to have forgotten or found the wooden trough a navigational Bermuda Triangle.
I dutifully moved the Trough a foot or so in away from the current position - and then observed in rapid succession as within a minute or two all the Bee's relocated the airbrick and were cleared for approach - landing gear down - happy landings
The other thing I noticed that although there are Ten apertures in the air brick - all the Bee's used the single bottom right opening - on the way in and , because clearly I had time to kill I waited and observed , on the way out also.
Not sure how Bee's communicate ( probably small talk -ha-ha-ha ) but I found the observation interesting.