Make a wood base for mounting birdhouse (optional) and attach wood birdhouse.
Sand and prime wood birdhouse and base. Also apply exterior polyurethane for a longer-lasting birdhouse.
Block off any openings. Decorative birdhouses are not safe for live birds.
Plan any color or design details first and then apply stones with thick dabs of silicone sealant, working around all edges, openings, and odd shapes first. Fill in rest after this.
Attach roof using silicone sealant as an adhesive.
Coat entire finished birdhouse with 2-3 layers of exterior polyurethane (optional).