Window Alert WINDSBA Bird Attack Window SpraySome territorial birds vigorously defend their territory. These birds perceive their own reflection in a window to be another bird competing for their mate and attack. Repeated attacks deplete a birds energy, putting its health and nesting brood at risk. Stop Bird Attack eliminates the birds window reflection, calms the bird, and stops the attack. The product is a removable, white coating that may be sprayed on any window under attack. Stop Bird