What is the purpose of providing an alternate roost when bat-proofing a house?

Providing an alternate roost when bat-proofing a house serves the important purpose of giving bats a safe place to go. When a property is bat-proofed, it typically involves sealing off entry points that bats use to access the structure. However, simply excluding bats from the building can stress the animals, especially if they do not have an alternative location to roost. By offering an alternate roost site, such as a bat house or a nearby natural environment where they can safely roost, it helps ensure that the bats have an acceptable place to continue their activities without feeling threatened. This practice supports bat conservation while also addressing any nuisance issues related to their presence in human structures.

The other options focus on attracting bats, preventing their return, or deterring other wildlife—which do not align with the primary goal of providing safety and refuge during bat-proofing efforts.