I was thinking more we befriend the crows and anyone they see as a threat they would attack because they will protect their food source. I would prefer not to harass them.

Like that story about the lady who befriended the local crows but then they started attacking everyone that came near her house. Then the neighbors started to feed them too and the crows ended up looking out for the neighborhood.

I would imagine if every neighborhood did this then the crows would see the cops as a threat to be harassed, especially if the cops threaten the people that feed them. Probably not as great as comrade goat but hey, I think crows could make good allies lol

https://www.oregonlive.com/trending/2021/02/portland-womans-viral-story-of-accidentally-creating-a-loyal-army-of-crows-is-sweet-but-is-it-true.html

I would use crows. There are many cases showing crows hold grudges, have facial recognition, and will teach other crows. It’s perfect. Plus they may bring gifts and trinkets