Hot Foot works through its sticky nature, NOT by burning or irritation.

As birds go to step out of the Gel they experience the feeling that their foot is stuck. This feeling is disliked and the message is quickly communicated to other members of the flock which quickly abandon the treated surface.

To achieve this function it is essential that the correct bead depth be applied and maintained on the surface where birds are roosting. This bead depth is achieved by cutting the cartridge nozzle in the appropriate place relative to the size of the bird as explained in this website.