Our living room has three windows, about 3 x 4 feet each, and bees continually run into them. I probably hear the thud of a bee a couple times every half hour. Where do they think they’re going?
Is it really just random, in that they can’t see the window?
We don’t have any flowerboxes or anything particularly close to the windows on either side (I’m not sure if bees search for flowers by smell or sight). Nothing that would attract bees.
Bees are primarily attracted by colors, from a distance. If you have something that is the color of the flower they might be looking for that is visible through your window, then that could be it.
The largest and most visible thing is a giant 4’ by 5’ photograph of the Bullet Cluster, providing evidence of dark matter. Perhaps they’re space-going bees.
The room is painted a light blue, so maybe that’s it.
One impact, as you imply, is no big deal. But over time these impacts, each inconsequential on its own, will eventually move the house off of the owner’s lot.