Bats often roost in buildings, creating conflicts with property owners. Ethical exclusion methods protect bat welfare while resolving conflicts humanely.
Bat exclusion from buildings must be timed carefully to avoid welfare harm. Excluding during maternity season — when flightless pups are present — results in pups starving and mothers unable to return to nurse them. This is illegal in many jurisdictions and causes significant welfare harm. Ethical exclusion uses one-way excluders installed after pups are flying (typically late summer) and offers alternative roost boxes. Many bat species return to the same roost annually — providing alternatives reduces the population-level impact of exclusion. Bats provide enormous pest control services, making coexistence often more beneficial than exclusion.