Did you guys hear about the Russian crows that entertained themselves by dropping stones into a lake and watching the perturbations on the water? Then a nearby GUM department store put in some skylights ... and the crows would fly over and smash the skylights with dropped stones.
I heard this story in the 1990s, can't find anything related to the GUM stores but here's something close enough.
Today I was woken up by a weird noise coming from within the walls ... took me awhile to realize it was an echo from some crows repeatedly dropping some sort of 5-inch bone/rock item on the adjoining room's skylight. But not from a great height like those jagoff Russian crows.