Tanglefoot Bird Repellent adheres to all surfaces while retaining its soft sticky elasticity. It simply deters nuisance birds like pigeons, starlings and house sparrows from their resting places by making roosting areas undesirable. Using a standard caulking gun just apply a bead of Tanglefoot Bird Repellent to any surface where the nuisance birds roost. Tanglefoot Bird Repellent is clear and odorless and can be easily replaced or re-coated as the sticky material collects feathers dust and other debris. 10 oz tube will yield at least a 10 linear foot bead.