[dylan604]

How effective will a pair of coyotes hanging out in Central Park be for rodent control in the city? It's the rats running in the drains, streets, buildings that are the problem. Rats living in the park are not what the people living in the city care about

[tastyfreeze]

Give it time. Predators breed until prey numbers are diminished enough that they start starving.

[lordnacho]

So then there will be thousands and thousands of hungry coyotes in NYC, since NYC is famously full of rats?

[skeeter2020]

except a specialized rat killer will not be much of a threat to humans, and will have a natural population control - or go after ferrets next!