In Canada, 16-42 million birds are killed by window strikes a year, and in the USA, that number goes up to 365 million-1 billion.
By adding designs that don't have any gaps wider than 2," you can make any window bird-safe. Decals, engravings, and even glass paint, are all options. There are many design options to pick from.
Image Credit:
1️⃣ https://birdsafe.ca/window-options/
2️⃣ https://www.decorativefilm.com/sx-bsft-trellis-bird-safety-film
3️⃣ https://skydesign.com/product/skysafe-bird-friendly-glass/
4️⃣ https://jemlovestodraw.co.uk/2020/05/08/experiments-with-window-displays/