Crows Vs. Falcons

In Tokyo, feral crows have become a serious problem. They clog traffic with dropped nuts. They poop on practically everything. They steal food from street vendors. They literally snatch candy from small children, then fly away. The city of Tokyo decided that they might fight back.

While most people would have gone on a crow hunt with firearms, or laid elaborate baited traps, Japan's famous for its odd solutions. In this case, they found a teenage falconry expert and had her pet falcon go hunting.

This has been more effective than expected. The falcon killed a bunch of crows, and the vast majority ran away in terror, deciding that if the humans can call up predators like that, they're probably not worth dealing with. Problem, crows?