Which wildlife species in Oklahoma primarily helps in controlling insect populations?

Bats are renowned for their significant role in controlling insect populations, particularly in Oklahoma. A single bat can consume thousands of insects in just one night, including mosquitoes, moths, and beetles. This natural pest control service provided by bats is crucial for maintaining ecological balance and reducing the need for chemical pesticides, which can harm the environment.

The other wildlife species mentioned do play important roles within their ecosystems, but they do not primarily focus on controlling insect populations. Raccoons are omnivorous and have a diet that primarily consists of fruits, nuts, and small animals rather than insects. Foxes are also more focused on hunting small mammals and birds rather than insects, while deer primarily graze on vegetation. Thus, among the given options, bats are uniquely positioned as the primary insectivores that help manage insect populations effectively in Oklahoma.