Free DIY bird house plans to make a gazebo (6-sided) hexagon nesting box. This birdhouse can be used to attract bluebirds, swallows, chickadees, nuthatches, warblers, woodpeckers, wrens, and other birds to your backyard or garden. Find more free bird houses plans or discover more nesting boxes and bird feeders. Materials and Equipment Needed to Build this Birdhouse: Wood (cedar, redwood,