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Butterfly Decal Envelope - 4 decal pack

  • Butterfly Window Decal - Prevent Bird Strikes
  • Butterfly Window Decal  in Use

Butterfly Decal Envelope - 4 decal pack


Product Description

WindowAlert decals help prevent wild birds from accidently striking windows. Each decal has a special coating that reflects ultraviolet sunlight. This ultraviolet light is invisible to humans, but birds see it as a brilliant glow much like a stoplight.

To the human eye, the decals appear as frosted or etched glass. Butterfly decals measure approximately 4" across. WindowAlert decals are designed to be placed on the OUTSIDE of a window. As a rough guide, we recommend one decal for every 3' x 3' section of glass. Reapply decals every 6-9 months.

CONTENTS: 4 Decals per Envelope. TYPE: Static cling.

(If a bird repeatedly attacks your windows, please consider our Stop Bird Attack product.)

Product Videos

Save Birds: WindowAlert Products and Installation 01:42

Now You Can Protect Wild Birds From Striking Windows Millions of wild birds are killed each year flying into windows. Now you can save the lives of the beautiful birds you love.

  • Save Birds: Wi...
    Now You Can Protect Wild Birds From Striking Windows http://ww...

Product Reviews

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  1. not that effective 3 Star Review

    Posted by on 15th Apr 2019

    i still have birds hitting my window, I have 4 on my big windows and 2 on my doors. I don't like the powder that is on them, when you put them on the glass, the powder gets on the glass. Then I read they have to be replaced every 4 months! That gets very expensive. And, you still can't see through them. I will go back to decals next time, they last and the birds can see them.

  2. Excellent 5 Star Review

    Posted by on 7th Feb 2019

    Easy to use. Fully functional.

  3. only last 4 months 1 Star Review

    Posted by on 14th Jan 2019

    Product packaging says they should be replaced every 4 months since the UV coating doesn't last. Don't buy these unless you want to spend money replacing 3 times per year. Also, we had a bird fly right into the window less than a week after putting 2 of the decals on the outside of that window. Useless waste of money.

  4. Cool 5 Star Review

    Posted by on 27th Nov 2018

    Cool decals, need to stick more on when the weather warms up here.


    Posted by on 23rd Oct 2018

    Best way to keep the birds safe. Stickers need to be changed after a while

  6. Maybe my birds aren't smart enough 3 Star Review

    Posted by on 30th Jul 2018

    I'm giving it some more time, but as of @ 2 weeks, I still have some birds who are flying into the window with the decals on it. Maybe they're not smart enough to know I'm trying to help them. Keeping fingers crossed for ultimate success

  7. Pretty and does the job 5 Star Review

    Posted by on 20th Jul 2018

    These look as though I have pretty etchings on my windows. If they work like the humming bird decals, then no problem.

  8. They really make a difference! 5 Star Review

    Posted by on 9th Jul 2018

    These UV decals really make a significant difference! While not perfect fewer birds hit our window.Much to our relief.
    They also lasted a year in our Sonoran-Desert sun..

  9. Clear Outdoor View 5 Star Review

    Posted by on 27th Jun 2018

    I am pleased to have these see through decals for our picture windows. We have a lovely view and many beautiful birds at our feeders. Now we can enjoy both without the fear of another precious bird flying into our glass and dying.

  10. Birds best friend 5 Star Review

    Posted by on 24th Jun 2018

    These work very well, the odd bird still hits my window but thats usually cause something scared them

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