In the right
conditions, a quality constructed bat house installed where it receives
plenty of sunshine within the proximity of surface water in a species'
range, bats will discover a new house and a few bats will likely move in
the first year and you should have plenty in the second season.
Mounting Bat Houses
Mount bat houses in the sun. Except for extremely hot climates,
bats need the sun's warmth all day, especially nursery colonies.
In moderate climates, paint houses black. Nurseries must be warm
enough for pups to grow quickly.
Odds of attracting bats increase with close proximity to water.
That's where the flying bugs are. A balance of foliage is good.
Big Brown Bats usually feed within 1/2 to 1 mile of their roosts, rarely
further. Other bats travel less.
Mount houses at least 12 to 14 feet high. Higher, as much as 20
feet is better. Have a professional mount a house if you are not
experienced - it's never worth the risk. Carpenters or
electricians will often mount them for free just for the novelty.
Attach houses to a sturdy metal pole or the south side of a building.
Metal poles and the cliff face simulation of a building wall deter
Spring is best, but even though Spring may be over, bats will still
likely discover your new bat house and a few will possibly even move in.
Sometimes bats move into a bat house within a few weeks.
Two bat boxes mounted back to back, one bat box facing north and one facing
south seems to work well. Wait with more until you see the
reason for mounting 2 bathouses is because males and
females of many bat species typically divide into nursery and bachelor
colonies for much of the summer. Males often spend the summer
alone or in small bachelor colonies.
breed in the fall and pups are born in spring or early summer. Female
bats usually give birth to one, sometimes two pups per year and raise
them in nursery colonies with other females. Pups feed
on their mother's milk and fly within a few weeks after birth.
Males and females start mixing again after the pups are weaned and
nursery colonies begin to break up in Autumn.
148 species live in North America, 140 inhabit Mexico, 19 inhabit
Canada, and 45 inhabit the U.S. 10 U.S. and Canadian species nest
in bat houses. See Bat Maps
10 Bat Species That Nest In Bat Houses