[grapesodaaaaa]

In this case, it should be easy to detect genetic or biological material if it was a meat sack strike & rule out space debris. They don’t tend to do well when hit at several hundred mph.

The only other thing really up that high would be space debris, weather balloon payload (the balloon itself is very thin and soft), or maybe a sounding rocket (but don’t these come with NOTAMs?).

[potato3732842]

Or just look for the blood splat.

A bird at hundreds of miles an hour leaves a heck of a blood trail.

[fyver]

He took a duck in the face at 250 knots.

[rogerrogerr]

NOTAMs are kind of a joke.