Bat bugs, closely related to bed bugs, primarily feed on bat blood but can survive and even thrive in environments without their primary host. In the absence of bats, bat bugs may turn to feed on human blood, displaying a degree of adaptability to new food sources. This transition typically occurs when bats leave their roost or are excluded from a building, leaving bat bugs behind to seek new hosts. Although bat bugs prefer bats, they can live for up to a year without feeding, giving them ample time to find alternative hosts in human occupants. This makes them capable of sustaining their population in homes, even without bats, as long as they have access to blood meals from humans or pets. The presence of bat bugs in living spaces without bats highlights the importance of comprehensive pest management, including humane removal of bats, sealing entry points to prevent their return, and addressing any remaining bat bugs with professional pest control measures. Ensuring that all potential hosts are removed or inaccessible can help avoid bugs of a bat from establishing a presence in human living areas.