Really interesting article, thanks for sharing! Sad for all those poor birds It does seem counter-intuitive for us to turn off the lights to help them navigate better but I'm glad more research is being done on that and that big cities are starting initiatives to dim lights during migration periods. I would love to learn more about how exactly birds navigate and whether it's something they're just biologically programmed to do or if thought goes into it. It's incredible how far they fly and how they just know the way.