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

These semi-transparent window decals are literally a life saver. Until I found them years ago, birds would fly right into my windows and die. It was heart-breaking. Then I found these decals. They are decorative and semi-transparent, so they don’t interfere with looking out your windows. They easily stick to the outside of the window and stay put throughout the various seasons, including harsh winters (I live in Alaska). From the outside, windows reflect the trees, plants, the sky etc. and fool birds into thinking there is nothing but air in between. So they fly full-tilt to their deaths. These decals are coated with a substance that allows birds to “see” them - and the window - in time for birds to realize they’re heading into a collision with a hard object and correct their course. I highly recommend them.

Easy install. Birds may fly towards window and quickly turn to avoid the window. Works great! May need multiple packs as 4 may not be enough for larger windows.

Isn't 100% effective. Still having birds fly into the windows. You need lors of them per window, so only 4 in a package us kind of pointless.....and expensive.

Easy breezy application and birdies stopped crashing to windows.

This are good and attractive. They do get scraped off on sliding glass doors.