I think it's not 100% safety, but, as i know rats die in their nest, so i don't think that the cat can get the corpse.Is that safe for owls and cats if they eat the poisoned mice then? Ultrasonic is not an option with no power.
I have mice not ratsI think it's not 100% safety, but, as i know rats die in their nest, so i don't think that the cat can get the corpse.
"Remember that rats can gather up the blocks and take them back to their nest, where they will die"