You mean you have a pile of feathers out in the woods that you visit often.I think it falls under federal law, and afaik, raptors are off limits for taxidermy. I have a collection of feathers I've found over the years, and it's illegal for me to have them. You can have my feathers when you pry them from my cold dead hands!
Not often, I'll agree. But we have had two sharp-shinned hawks commit accidental suicide on our big windows, over the years.The only thing I can think of is that it bumped into one of our windows. Not really something raptors normally do.
Or maybe some of that holographic tape used to repel woodpeckers from making mince meat of the wooden trim on your houseOne of the things I have done is to hang hootchies or flies from monofilament fishing line on the outside of the windows. It works wonders actually. Try it out.