Unless you have a rare endangered species of rat its probably OK with the authorities. In fact in Alberta they'll send the officers on the Provinces "rat patrol" to help you (Alberta wants to maintain its official rat free status)!. However the method used might put you in trouble with the law, Traps and commercial poison baits are probably fine. Shooting, massive poison campaigns that might also kill other animals and pets, poison gases (as a do-it-yourself effort), experimental electrocution systems, automatically discharging weapons on trip wires, explosives, radioactive materials, poisonous snakes released into rat holes and similar inventive methods might get you in trouble.
No, why would music kill rats?
Yes, cats can kill rats. Cats don't just kill only rats but they can also kill Mice.
In Alberta, rats are illegal. Alberta has a program to keep rats out, which has been by and large successful.
It is illegal to kill anyone.
rats can kill chickens and can carry over 37 different deseases transmittable to humans
no only if the rats are diseased
Yes it is illegal to kill songbirds
It is illegal to kill anyone innecont
Periwinkle plants do not typically kill rats. While it may have certain properties that are repellant to rats, they are not a reliable method of rodent control. It is best to use proven methods such as traps or poison to effectively deal with rat infestations.
YES
If 5 Cats kill 5 Rats in 5 minutes that equals 1 rat killed each minute by each cat. So, in twice as many minutes the same ammount of cats will kill twice as many rats... 5 cats will kill 10 rats in 10 minutes. And if left for five times as long, which is 50 minutes, those same 5 cats will kill 50 rats. So obviously you will need twice as many cats to kill twice as many rats in the same time. So the answer is... You will need 10 cats to kill 100 rats in 50 minutes.
Yes, rats, at least wild rats, are very aggressive to most other animals. Rats are omnivores, meaning they eat both plants and animals. So eat anything if they can capture it and kill it.