Boao 20 Pieces Anti-Collision Window Bird Shape Windows Sticker Decals Bird Shape Window Stickers Clings for People and Birds Strikes Prevention on Shutter Glass Door Party Accessory

These are a great deterrent to birds breaking their necks flying in to large sections of glass. I put these all around my greenhouse. Made a great difference

Just put these on the window today so I don't know yet if they'll be effective. Crossing my fingers no more birds will be injured hitting the picture window. Just a heads up - These decals don't come with any instructions. They're just loose inside a plastic zipper bag when they arrive so if it's your first time ever using these, you'll be able to learn the right way to stick them on the glass from the item description screen here. Update.. After several weeks I can see now that these are very effective to redirect birds away from the picture window. Multiple times a Cooper's Hawk has come swooping around the side of the house lately and not one bird has hit the glass. In the past when that hawk flew in, the cloud of feeding birds would scatter in every direction and a few inevitably bashed into the window during that chaos. These decals are a great solution. Highly recommend. Update #2... These have been on the outside of the picture window here in Upstate NY for almost a whole year. They haven't budged and look no different than the day I put them on. No fading or peeling. And they continue to be an almost complete deterrent to birds crashing into window.

I purchased these thinking they would help birds see there was glass there. I guess their brains aren't able to process in that manner. The birds try to fly between the decals, still not realizing the glass is there. I will probably use these for other uses, just not anti-collusion for wild birds.

Why did you pick this product vs others?: They don't stick to the window as well as I would hope. And I am still having birds fly into my windows.

Slightly smaller than I expected, but seem to be doing the trick of keeping birds away from the window. A little too realistic for one of my cats though, as he attacked one and tore it off the window. Oh well. Easy to apply. Hardest part was peeling the backing off before applying.

I bought these to stop a male cardinal from attacking our window. At first, it seemed to work, but after a day or two, he seemed to be attacking the window more than before. I had to remove them.

did not work with robins!!! Still attacking windows. I have 40 { two packs } and bird still hits windows.

Oh my, we feed all birds & these are just so perfect!

Ce dispositif convient parfaitement pour éviter les collisions des oiseaux sur les vitrages par exemple d'une véranda. L'avantage c'est qu'il puisse être disposé sur les vitres intérieures car la double face est toujours bien représentée pour l'extérieur, ceci protège aussi nettement ces images . Le rapport prix / qualité est excellent d'ailleurs.

Para cristaleras grandes en la cual los pajaritos se estrella van. contra los cristales .Ahora ya no pasa eso los tengo puestos por el exterior y no se despegan apesar de la lluvia y otras inclemencias. Muy satisfecha.

tres satisfait colle et decolle facilement

Hopefully as bird strike deterrent.

we have a glass balustrade around our raised patio and unfortunately a couple of birds collided with the glass to fatal effect. Hence we got these. They are a decent size and easy to apply. They seem to be well stuck on so far and havent come off (they dont use glue)