WindowAlert Decals – Sold as a Set of 3 Packages (4 Decals per Package)

Help prevent bird window strikes with these beautiful decals, available in Butterfly, Hummingbird, and Maple Leaf Designs.

Each decal has a special coating that reflects ultraviolet sunlight. This ultraviolet light is barely visible to humans, but birds see it as a brilliant glow—much like a big stoplight.

To the human eye, the decals appear as frosted or etched glass. Each decal measures approximately 4 inches across. Designed to be placed on the outside of your windows, we recommend at least one decal for every 3’ x 3’ section of glass. Self-stick, static cling application makes them easy to install and remove with no residue or mess.

Each package contains 4 decals, and this product is sold as a set of 3 packages, giving you a total of 12 decals.

WindowAlert Decals have received rave reviews and work beautifully to prevent birds from crashing into windows. If you have a territorial bird such as a Bluebird, Robin, or Cardinal that repeatedly attacks your windows, check out the CardinalAlert.