Window crashes, also known as bird strikes, kill millions of birds with *every* migration. You might not think it happens to your windows, but it does, and you’re not there to witness it. But we can stop it entirely.

I actually did for my own home, detailed in a later blog post – Fritted, decorated windows preventing bird crashes: Weird no more

I was in Toronto this week. The Corktown Common park was a joy to visit. It has a constructed wetland that they seeded well with native species. It has reeds, duckweed, and native water fleur-de-lys, making it a wonderful habitat for birds. I only wish it were larger, but that it is so accessible to wandering humans means they have a chance to see nature they won’t otherwise see. It whets the appetite for the real thing!

On the walk to the park, we also saw a lone swan nesting, or resting, by the viaduct. It was strange to see that in a “no-man’s-land” off the eastern part of downtown, but as always, it was welcome. I also saw a red-wing blackbird feeding his nestlings. Or, more like, I saw him arrive with food, heard the cacophony of chirps, and then saw him fly off to get more.

There’s a newly constructed glass building in the new West Don Lands area that used bird-friendly glass, with dots impregnated into the glass every 8-10 cm (ideally, though, it should be every 5 cm).  Birds need to see that the reflective glass is not “air to fly through,” so interruptions or obstructions in the reflected light are necessary.

Toronto is in the middle of a flyway. Though we need to carry out bird-friendly design (and leaving some places alone to be wild) everywhere, Toronto recognizes its problem, and since 2010, Toronto has mandated bird-friendly glass on all new construction. The official design guidelines are here.