It is important for people to remember that bats are wild animals. Bats are not aggressive, and do not intentionally attack people or other animals. However, they will bite in self-defense if handled. Caution is always recommended when finding a dead or injured bat.
Birding enthusiasts should not worry about competition between bats and birds. Since bats are nocturnal, they rarely come in contact with most birds. Also, there is rarely competition for food since there is not typically a shortage of insects that are consumed by both bats and insect eating birds, such as the purple martin.