Data Sheet

Pronunciation: you-mops floree-dan-us

Fun Fact: Up to 80% of Florida bonneted bats have patches of white skin and fur called “Hypopigmented Marks”.

Florida bonneted bats are endemic to southern Florida, and are found mainly in Miami, Coral Gables, and Fort Lauderdale areas. Florida bonneted bats are among the largest bats found in North America, ranging in size from 40 to 65 grams, with wingspans up to 20 inches. The large, forward-facing ears on these bats give them the appearance of wearing a bonnet. Florida bonneted bats are insectivores and capture insect prey in flight. Their echolocation calls are relatively low frequency (10-25 kilohertz) within the hearing range of humans.

Florida bonneted bats forage in a variety of habitats including pine and hardwood forests as well as agricultural areas, golf courses, and neighborhoods. They roost in natural pine tree cavities, under roofing tiles, and in bat houses. Colonies are generally small (around 10 individuals), that often consist of one male and several females.

With a limited geographic range and small population size, Florida bonneted bats are vulnerable to decline from habitat loss and disturbance as well as natural disasters, such as hurricanes.

For more information on Bat Conservation International’s work with Florida bonneted bats: Endangered Species Interventions, Miami Bat Lab