These animals are a necessary part of our environment. Some are predators that eat vermin, insects, and carrion (dead animals). Some are prey that other animals use as a food source. Sometimes citizens request that these animals be captured and removed for no other reason than the fact that the animal is present. Relocation is not permitted when most of these animals are captured. They must be destroyed. This is neither practical nor desirable, if the animal is healthy and behaving normally. Finally, removal can often create a void that will quickly be filled by another animal.