Inspired from over 10 years of research, the Organization for Bat Conservation has designed the Songbird Essentials Five Chamber OBC Bat House. The OBC (Organization for Bat Conservation) has created a weather resistant cedar bat house that can hold up to 600 bats to make sure that a lot of bats have a safe home. The Songbird Essentials Five Chamber OBC Bat House has many features to make it a great place for bats to call home. It has extending landing for easy entrance and interior nylon mesh for maneuverability. By providing a protected home for these bats, they will return the favor by helping to control mosquitoes and other flying insects in your yard. The Songbird Essentials Five Chamber OBC Bat House also includes ventilation slots for air circulation as well as a 3/4 inch exterior plywood back. Made in the USA.