Anyone have a method that works?

The ultra violet colorform stickers seem to attract them, I've been hanging mardi gras type beads on the outsides , seems to help quite a bit but some birds still go kamikazi...trying to find a better solution without making this place look like a State prison, lol

I’ve seen places install a window film on outside of windows that’s fairly transparent that works fairly good. Need to try reducing the glare that comes off the windows and most people use stickers or handing cords to try but those methods are not always visually pleasingly.

I had a Robin, 2 years in a row, bombing my cave doors. Had 100 1/8" Robbin spit marks on the glass. Hasn't been back recently. Possibly got that football brain thing..

Drain bamage...lol