Polk County Conservation


Big brown bat

There are nine species of bats in Iowa. All are insect eaters and a single bat can eat up to 2,000 mosquitoes in one evening.

Some of the more common bats found throughout Iowa are the little brown bat, big brown bat, red bat, hoary bat, and the silver-haired bat. Some of the less common bats are the Indiana bat, tricolored bat, evening bat, and long eared bat.

The Indiana bat is the only federally endangered mammal in Iowa. Indiana bats hibernate in large groups and like to roost in caves and mines. It is endangered mainly because of human disturbance of hibernating bats.

In Polk County, a great place to view bats is at Jester Park Group Camp #5. As the sun goes down, turn your eyes to the sky and look for bats flying erratically, zipping here and there trying to catch insects.


  • Bats Bats Everywhere This is a great site designed for kids. It includes bat myths, facts, games and quizzes to test your knowledge.
  • Bat Conservation International A comprehensive guide on bats from around the world. Also includes articles on recent bat conservation projects Bat Conservation International is working on.

Contact Us

Administration Office
12130 NW 128th St
Granger, IA 50109

P: (515) 323-5300
F: (515) 323-5354

Monday – Friday, 8:00 a.m. – 4:30 p.m.

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