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What is WindowAlert?
WindowAlert is a collection of bird-saving products designed to eliminate collisions of birds with windows. Our non-adhesive, static decals reflect the ultraviolet sunlight producing a glowing effect for birds. What looks like a transparent sticker to us will appear as a glowing object to them.
Leaf Medley
Modern Square
Hummingbird
Maple Leaf
Stop unnecessary bird collisions with your windows. WindowAlert is the safe, and effective way to help guide birds away from potential hazards.
Liz
2025-09-03 09:59:33
I have 2 large windows facing my backyard and have had some birds fatally collide with them. I installed these clings and so far so good! They have been on the windows for a few months now. I waited to write this review to make sure they were as effective as promised.The clings also look cute - I like the fun butterfly shapes. They are invisible at night as well. Esay to install, just clean the window surface, peel the sticker and apply. They have remained secure for months now.
JennyH
2025-08-19 15:51:31
I am a repeat buyer of these stickers because they worked so well on my sliding glass doors to stop the birds from killing themselves. Guests think they are just decoration until I tell them and they are always impressed. Save the birds!
Anthony Franklin
2025-07-23 14:37:56
I kept getting birds flying into my bay window. I was getting ready to stop feeding them, but I found these and they work almost 100%.. I only had one time when one did that I know about. So not 100% but still real good. They need replace about ever 3 months, but I have mine under a over hang and not in direct sun so they should last a little longer.
Teresa Minikin
2025-07-13 15:30:26
The birds have not bumped into my window since I put them up
Wendy Van Horn
2025-07-11 17:29:32
These are appealing and stopped a bird that kept hitting my window every morning. They stick easily and look nice.
Lillian Hwang
2025-07-01 15:07:21
So - These decals work great. But the butterfly/moth shape is problematic.Every morning for the last two weeks a robin has sat in the bushes outside our window and attacked these stickers. FOR HOURS. Every thirty seconds I hear a "scuttle scuttle bonk" as it tries to grab at each of the butterflies in turn. I'm sure it thinks it's snagging a large tasty butterfly flavored breakfast.Instead of a deterrent and an awareness that this is a solid surface not to fly into, this bird is attracted to the stickers. I wish I was joking. This is the only bird that has done this - but just a heads up to other buyers who might also encounter this scenario.I'm going to have to buy some window decals that look like birds of prey to replace the butterflys. :/
librarylady
2025-06-05 14:37:14
We had a set on our patio door for at least 7 years and they worked! We had to replace the door and immediately began to experience bird strikes again. We bought another set and problem solved!! No more birds hitting the glass! They are easy to apply and stay on. I really can’t say if they are easy to remove. They worked and stayed on until the door needed replaced!
David E.
2025-05-09 16:48:26
There is a large pear tree down from our house that is home to lots of mourning doves. At least 2 to 3 time a week in the early evening they would fly into our front picture window, thankfully not hard enough to get hurt or brake window. Nevertheless, we needed to do something before something happened so while searching I found these. I put the 4 that came in the package spread out in a square pattern in the window about a month ago. Haven't had any more birds hit the window and they are out sitting on the power lines as usual every evening. The instructions say that the uv coating thar the birds see fades after 3 or 4 months so I will be buying again to replace.
EileenT
2025-05-02 16:02:10
I had multiple bird strikes on my patio doors until I started using these WindowAlert decals on. They last several seasons, and I purchased these again to replace some old ones when I had my door changed out. They are pretty and barely noticed, unlike some coloured ones from other companies. I have not had a bird strike since using these. I highly recommend WindowAlert brand decals over any other. Please dont stop making these. I love the butterfly version!
Paloma López
2025-03-20 16:20:10
Funciona perfectamente, no se ha vuelto a chocar ningún pájaro en la cristalera, además desde dentro es prácticamente invisible.Recomendable 100%
c and b with kitty cat's
2025-02-10 13:55:08
My home is surrounded by trees and I've had birds crash in to my windows shocks the life out of me and my cats ,the cats do love to sit and watch the birds 🦠ðŸ¦â€â¬› flying around I don't want any dying by crashing into my windows so I bought these only 4 in the packet but thier big enough put 1 in each corner and straight away you could see the birds 🦠ðŸ¦â€â¬› avoiding the widow I would recommend these if you do get birds crashing hitting the window's .
Dulcy
2025-01-01 15:46:05
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Gillian Jackson
2024-12-12 14:33:46
Easy to use
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