Bat Houses
Bats find the bat houses just like birds find bird houses, by sight. If a house is in the proper location, meets the bats’ requirements and is needed, bats will move in on their own. The majority of bats that use houses are females using the house as nurseries.
In Michigan the Little Brown Bat and the Big Brown Bat are the most likely to use Wild Birds Unlimited bat houses which meet the specifications determined by Bat Conservation International and the Organization for Bat Conservation. In the northern two thirds of the U.S. and Canada, most bats migrate south in the winter. Most bats that inhabit bat houses in the summer will move to caves, or mines in the winter. Tree roosting bats will fly south.
Bat House Placement
Research also shows that they are more successful if they have at least 8 hours of sun. The morning sun is most important. Bat houses should face the south or southeast.
In northern areas the top third of the house can be painted brown or black with a latex water base paint to aid in warming the box. In southern parts of the country, the boxes can be painted latex water base white, if there is too much direct sun.
Some Bat Facts
• Providing houses furnishes places for bats to roost, hibernate and raise young, in addition to, and when the natural sites are not available.
• Little Brown Bats, while hibernating can reduce their heart rate to 20 beats per minute and can stop breathing for 48 minutes at a time. Little Brown Bats can hibernate for more than seven months if left undisturbed.
• A group of bats is called a "colony"
• A baby bat is called a "pup"
• Bats are warm blooded mammals and nurse their babies with milk.
• A nursing little brown bat mother can eat more than her body weight nightly (up to 4,500 insects).
• They are the only mammals that can fly, but bats have fur and no feathers.
• Bats hang upside down so they can get high up and away from their predators and also to get an easy take off by just turning loose and flapping their wings.
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