4x4 Wood Post Birding System Accessories allow you to create your own unique birding station out of a 4x4 post. Add to the post squirrel deflectors, and this Round Post Flange for displaying your favorite feeder or birdcage. Flange comes pre-drilled for easy and quick installation of birdhouse or birdcage. The system can then be displayed out in the earth of your yard or garden with the ground screw. All components of this system are finished in black powdercoat for coordination and ultra durability.