When should bat-proofing not be conducted to avoid trapping baby bats?

Bat-proofing should not be conducted from May through August because this period coincides with the breeding season for many bat species, during which time female bats give birth to their young. If bat-proofing is carried out during these months, there is a significant risk of trapping baby bats inside structures as they cannot fly and would be left without access to their mother and to food sources.

During this breeding season, juvenile bats may become dependent on their mothers and will be vulnerable if separated. This can lead not only to potential violation of wildlife protection laws but also to animal welfare concerns. Thus, it is crucial to wait until late summer or early fall when young bats are mature enough to fly and leave the roost with their mothers. This ensures that bat-proofing measures are humane and environmentally safe.