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Fall is bat eviction time

Contributor
By Contributor
December 2nd, 2014

Summer is the season when property owners notice bats in their buildings.

They may find guano on the deck, hear bats in the walls, or smell a build-up of guano.

The Kootenay Community Bat Project (KCBP), funded by the Columbia Basin Trust and the Columbia Valley Local Conservation Fund, has received hundreds of calls over the years with these issues. In many cases, landowners are happy to leave bats where they are. However, for landowners who would like to have bats move out of their buildings, now is the time to do something about it.

“With the decline of natural roost structures in the wild, such as large trees or undisturbed rock crevices, some bat species have adapted to use buildings for their roost sites” says Juliet Craig, Coordinating Biologist for the KCBP.

“Groups of related females can form large colonies called maternity roosts where they get together to have their one pup. These colonies may use attics, walls, chimneys, siding, barns, sheds and other structures.”

Under the BC Wildlife Act it is illegal to exterminate or harm bats. In order to “get rid of bats”, the best strategy is to wait until they have left the building and seal up all the entry and exit points.

However, in summer months, bat pups can become trapped inside.

In general, bats in the Kootenays leave buildings in the late summer or early fall. They use fall roost sites where they mate and then go into mines or caves to hibernate. Although there is a possibility that bats can use buildings over the winter, it is unusual.

“There are several approaches to managing bats in buildings” continues Craig.

Some landowners don’t mind having bats and simply leave them be or clean up the guano once a year. Others want to ensure that the bats are no longer using the building. In those cases, this is the time of year to check that bats are no longer inside the roost and then work on sealing up all entry and exit points.”

One of the most important strategies in excluding bats from a building is to install a bat-house nearby. These wooden boxes comprised of various chambers provide the bats with an alternative habitat. They are less likely to be persistent in entering their old roost site in a building if they have somewhere else to roost.

To find out more about how to do a bat eviction, bat-house plans, or bat biology, visit www.kootenaybats.com and download the “Frequently Asked Questions” booklet. Or call 1-855-9BC-BATS ext. 14.

This post was syndicated from https://thenelsondaily.com
Categories: General

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