Bird collisions with residential glass surfaces account for a significant number of bird deaths annually - especially during migration seasons. In order for birds to 'see the glass' and not collide subtle visible markers must be applied to exterior glass surfaces in problem areas. A new highly-effective ‘Do-It-Yourself’ Kit is now available from Feather Friendly® Technologies. It allows you to apply the same solution at home that has proven to be successful in thousands of square feet of commercial building installations.The markers are especially beneficial when using backyard feeders or if the outdoor birds can hear or are attracted by your Parrots inside. Each kit contains instructions, measuring tape and a 100 foot roll of markers that will cover 16 square feet or a window 30" by 80" the size of a glass patio door. For more coverage get a kit with 3 rolls.