I've had damage from birds twice at night, each time at about 10,000'. Both were about 1:00 in the morning. One strike occured in a Cessna 182, and it hit square in the windscreen and did damage. The other was in a Learjet aproaching Las Vegas. I was at 250 knots. It crushed the radome and damaged the windscreen.
I don't know what type either bird was, but they were big enough to cause damage.