Pan Am hit a Goose at 32'0 near Gander many years ago. It hit just below the cockpit widows and put a large dent in the front.
I believe it was United that lost a Viscount over Maryland after a Swan took one of the horizontal stabalizers off at 22'0!!
Bugs at 10'0 or higher is not unusual in the area of thunderstorms. I got the front covered in large squiggy grasshoppers at 12'0 over the mid west as I passed behind a line of thunderstorms.
Speedbird 48