Nature lover, not an expert. For years I’ve quietly observed and listened to birds, learning their voices and what I found is that there is always something new to learn.

Sadly I see observations with photos of fatal bird strikes. I urge everyone to help stop birds from hitting windows by applying bird-friendly deterrents on troublesome windows. Check out some examples here:
https://flap.org/stop-birds-from-hitting-windows/
I installed Feather-friendly rolls of dots on problem windows, they are non-obtrusive and help keep birds safe. https://www.featherfriendly.com/residential