Help prevent birds from flying into windows, doors and greenhouses which can cause injury or death. Translucent decals reflect ultraviolet light so they appear clear to humans but show like frosted glass to birds. Reusable self-adhering decals remove easily. Each pack contains four decals approximately 4" across. Hummingbird design.
- WindowAlert decals may be used only on an EXTERIOR glass surface -- free of any overlay, tinting, film, or coating.
- Clean glass thoroughly. Make sure glass is free of chemicals and cleaners before applying decals.
- Decals are best applied when glass is warm (greater than 50 degrees Fahrenheit). If applied during winter months, clean glass with warm water prior to application.
- Peel decal from paper backing. The same side that was against the paper goes the against the glass.
- Place decals on the outside of the window. Concentrate decals at center then work out, placing decals at a minimum, on every 2 feet of glass. For maximum protection, scientific studies suggest placing decals 2 inches horizontal, by 4 inches vertical, from one another.
- UV coating will fade based on exposure and local elevation. For best results, replace decals every 4 months or test with the WindowAlert UV Flashlight.
- Position out of reach of infants and small children.
- Restore static cling by rinsing in lukewarm water.
16 Reviews Hide Reviews Show Reviews
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Hummingbird Window Alert
These plastic decals actually work! They keep hummingbirds and other birds from hitting the large windows facing my garden. The decals are easy to apply and look nice to human eyes.
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Window clings work
These window clings have dramatically decreased bird window strikes at our house
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They work!
So far I have not had any birds try to fly through my windows with these stickers.
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Attractive and they work
These window decals really do keep birds from flying into our windows and they are attractive.
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Please red info carefully before buying
Unfortunately I left a bad review earlier because I did not read the info well before buying. It is impossible for me to apply theses decals on the outside of my windows because of their height above ground. My error but I will try using them on the inside instead since I purchased them.
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bird protection
We have five patio doors that face the south so every year I place these on the windows after a good cleaning and it is rare that we ever fine birds flying into our windows/doors.
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Great Product
Ordered to place on windows to keep birds from hitting windows. The bumps are startling. Waiting till the addition is complete before I put up.
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humming alert sticker
half of stickers did not adhere to window
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Window Decals
These decals work in preventing birds from trying to fly into your home. If the window or door area you wish to cover faces the sun, I suggest you replace the decals every year or two. The sun has a tendency to remove the effectiveness of the decals. Very good product.
