PREPARE THE FEEDER BOX PARTS.
The posts and box sides form the walls of the feeder box. Vertical grooves in the box sides let you check seed levels. Seed flows through small arcs cut in the bottoms of the box sides.
1. Cut the posts (B) to length from 3/4"-square cedar stop molding. (Or, rip a 3'-long piece of 3/4"-thick cedar to 3/4" in width to make the posts.)
2. From 8" cedar lap siding (actual dimension is 7 1/4") cut two 6"-wide box sides (C). Then, cut two more panels to about 7" in width to be trimmed later to follow the lap-siding bevels.
3. Cut viewing slots. First, drill two 1/2" starter holes for a jig saw blade along the center of each box sideone hole 2" from the top, and the other 2" from the bottom. Connect the starter holes by cutting with a jig saw to form the slots.
4. Cut a 1/2"-deep arc into the bottom of each box side, using the jig saw. Start the cuts 1 1/2" from each end. Smooth out the arcs with a drum sander on a power drill.
5. Cut strips of clear acrylic or plastic slightly larger than the viewing slots. Hot-glue them over the slots on the inside of the box sides (photo B).