Answer:
Some laws limit hunting, which may explain why there are so many. Since they are not hunted by humans, more of them have the ability to grow and reproduce. They also may not be hunted if they are in an area surrounded by houses. Hunting in these areas would be dangerous for other people.
The lack of natural predators could also be a reason. If there is nothing to eat them, they will grow and continue to reproduce. This can then lead to overpopulation.
Step-by-step explanation: