Purple Martins are perhaps the best-known and loved “backyard” birds. Their gregarious nature, gurgling call, and graceful flight make them popular wherever they are found. Welcome them with the product, which hosts 8 rooms in, a 2.125” hole. The top comes off for annual cleaning there is drainage, and ventilation making this a great house to nest in. There is a wood collar block for mounting. Be sure to read up on the best way to mount in your neck of the woods. This house is made in Eastern PA in the Amish Country.