This bat house that Mike Omeg bought from BCI will hold 300 to 400 bats. The cost of premade houses varies from $75 to $225, depending on size. Right: Mylea Bayless shows the chambers inside a bat box. Constructing a bat house is not difficult, and most farmers can build their own, says bat expert Mylea Bayless. Bat house dimensions and materials can be found on the Internet, along with ready-made, certified houses that can be ordered from the Bat Conservation International Web site or others. Bat houses are more likely to be used if they are installed before bats […]