Why Build/Use Bat Houses?

Bat houses, or bat boxes, are artificial structures designed to provide safe and suitable roosting and breeding habitats for bats, helping to address habitat loss and degradation.

Here's a breakdown of key aspects of bat houses:

Habitat Loss:

Many bat species face declining populations due to habitat loss and degradation.

Insect Control:

Bats are natural insect predators, helping to control populations of mosquitoes and other flying insects.

Ecosystem Benefits:

Bats play a vital role in pollination and seed dispersal, contributing to healthy ecosystems.

Bat Guano:

Bat guano (feces) is a natural fertilizer and can be a great addition to your yard and garden.

Key Features of Effective Bat Houses:

Size and Design:

Chambers: Effective bat houses have multiple roosting chambers, allowing bats to move to different temperatures.

Roosting Surfaces: Roosting surfaces should be rough and grooved to allow bats to cling easily.

Landing Area: A wide landing area below the entrance allows bats to easily access the house.

Height and Width: Bat houses should be at least 2 feet tall, with chambers at least 20 inches tall and 14 inches wide.

Materials:

Wood: Use exterior-grade, weather-resistant wood like cedar.

Sealing: Ensure all seams are tightly sealed to maintain a stable temperature.

Roosting Surfaces: Roughen the roosting surfaces with grooves or mesh to aid in climbing.

Placement:

Sunlight: Mount bat houses in areas that receive 6-8 hours of direct sunlight daily.

Height: Mount bat houses at least 10 feet (preferably 15 feet) above the ground.

Orientation: Facing south, east, or southeast can help capture morning sun.

Near Water and Vegetation: Place bat houses near water sources and vegetation, which bats often use for navigation.

Avoid Tree Branches: Avoid placing bat houses where tree branches can serve as predator perches.

Maintenance:

Cleanliness: Regularly clean bat houses to remove guano and maintain a healthy environment.

Repair: Ensure the bat house is weather-tight and structurally sound.

Tips for Attracting Bats:

Patience: It can take time for bats to find and occupy a bat house.

Group Placement: Mounting multiple bat houses together can increase their attractiveness.

Avoid Dark Colors: Paint bat houses in lighter colors like tan or gray, as dark colors can overheat.

Avoid Oil-Based Paints: Use water-based paints and stains.

Install Before Bats Return: Install bat houses in the spring before bats return from hibernation.