In NZ there is a problem with Opossums.... a non-native animal that flourishes.
Even so... various types of poison are VERBOTEN because of environmental/leftist loon objections.. and even a (successful) bounty encouraging hunting and killing stopped long ago (animal "rights" outrage)
One of the many problems they cause is that they climb up things....power poles for instance and do damage/cause power cuts.
A very simple solution is to place a band of aluminum around any vertical pole... too slippery for the little vermin to claw and climb.
I suggest this might be a solution for tall buildings in NY.... a coating on the outside of windows at say, the 20th floor level.. so that any vermin climbing that high simply slide off and fall to their death.