WindowAlert Leaf Medley Anti-Collision Decal - UV-Reflective Window Decal to Protect Wild Birds from Glass Collisions - Made in The USA

Before adding these decals we were having a bird or two meet it's demise by our large glass patio doors :(Since adding the decals we have had no birds hit. Success! Great product. Saves birds lives!!!They aren't invisible to humans but they have a nice look to them

The birds avoid collisions w/our patio doors.

I like the price and the fast shipping. Placed stickers on each side window of our French Doors. You don't really notice them on the outside of your windows so they don't obstruct our view of the birds or the lake. So far no birds have flown into our windows but will definitely write more later if they don't work as well this summer.

Be aware - the application is to the exterior of the window. They served our need perfectly. Easy to apply. Effective deterrent.

So far, so good. I placed the decals on the inside of the window. Instructions stated to put them outside, but I wasn’t up to washing the windows when it was 40 some degrees outside.

they did as expected. Easy to useI will order more.

Didn't work. Used the instructions and put them on, and literally within minutes the birds were banging on the windows and haven't stopped. As well, they should sell them in packages that are enough to actually fill a normal sized window. Five decals won't do a normal window, so you have to buy multiple packages just to do one window. Then, it doesn't even work.

I get a lot of bird strikes from sparrows and doves on my living room windows, so I decided to try these. First, for the price, you don't get a lot of coverage. I had to buy 2 packages for 1 large window to even come close to the recommended "no more than 2 feet apart". Doves have stopped hitting the window, but I've had 2 sparrow strikes today alone; they just hit in a spot with no decals, including in spots that are less than 2 feet between decals. While it's nice that the decals are an attractive shape (I went with the leaf design) and very muted since they have no color, this is an impractical solution to the problem given the price and how many are needed to cover every little space a sparrow might hit. They also have a short life of just 4 months and then, supposedly, need to be replaced. I won't try this again. Not sure what I'll try instead, but it will have to be a more economical solution.