Use a gourds to make a simple birdhouse that lasts for approximately two years. The type of bird that nests in the finished gourd birdhouse depends on the size of the gourd and entry hole. Coffee cans are also suitable for making very simple birdhouses. Make coffee cans into nesting shelf-type houses for larger birds, or closed houses for smaller species of birds.
To make a birdhouse out of a gourd, drill a few small holes on the bottom of the gourd, to allow for drainage. Next, drill a large hole into the side of the gourd to serve as the entry hole for the birds. Consider bird species' preferences when deciding on size and placement of the entry hole.
Bluebirds, chickadees, wrens and swallows can all nest in gourds that are approximately 5 inches wide, but chickadees and wrens prefer entry holes about 7 inches above the bottom of the gourd that have a diameter of about 1 and 1/8 inches. Bluebirds require a 1 and 3/8 inch hole that is 8 inches from the bottom. Drill two small holes at the top of the gourd and thread wire or small rope through the holes to hang the finished birdhouse.
To construct a birdhouse from a coffee can, thoroughly clean the inside of the can and let it dry. Drill several holes in the can to allow for drainage and ventilation. To make a house for larger birds such as doves or robins, completely remove the lid of the can. For smaller birds, cut an appropriately sized hole out of the lid. Puncture holes through the bottom of the can, and use screws or nails to affix the birdhouse to a tree.