Argiope aurantia is known commonly as the Yellow Garden Spider and Writing Spider, for its habit of creating opaque zigzags in the middle of its webs. These zigzags probably perform several functions, one of which is to prevent birds and other animals (like people) from clumsily crashing into their webs.
These removable stickers draw inspiration from Argiope's thoughtfulness, and are designed especially to be attached to windows and glass doors to prevent bird (and human) collisions. The design can be enjoyed from the inside of your home, while the large shape of the sticker helps birds steer clear.
Measures 4" across.