House is ventilated for a cool nesting area and drainage holes that help to keep the nest dry. House also has porches with guard rails to help protect young martins from falling out.
Comes with round entrances only. Entrance plates to convert to Starling Resistant Entrance Holes are readily available, or can be made yourself. We HIGHLY recommend changing the entrances to SREH to prevent Starlings from gaining access to your Martins nests.