Your visual markers must be large enough for birds to see. Dr. Sheppard recommends decals at least 1/4-inch wide and says that bigger is better because birds can see them from farther away.

Every year, hundreds of millions of birds die in the United States from flying into glass. New research shows how to prevent some of those deaths. By Catrin Einhorn A thump on the window, if you ...

The Chamber designed a friendly, five-by-five-inch window sticker that reads “Kelowna – A Warm Canadian Welcome – We share ...