Speak to the owner. That will fail. Contact the county. That might help. Then, make with the poisoned grain if the county won't help Dead rooster plus collateral dead chickens. Oh well.

Leave no evidence at your home. Deny deny deny. Then repeat as needed.

I once suggested to a hotel manager that he should buy the neighbor's rooster. He didn't grasp there was an issue because he was raised in a jungle where everything is constantly screaming.

What to do? Huli-huli!