>All the while, the bird was zipping along at 90-170 km/h (56-106 mph). Given that these birds generally cruise at 10-60 km/h (6-37 mph), at his top speed
I assume the higher speed is "across the ground" but it's possible he flew his usual airspeed the whole time.
I assume the higher speed is "across the ground" but it's possible he flew his usual airspeed the whole time.