I didn't think they flew at all until about 5 years back a small flock was walking in the parking lot of one of my facilities hangars.
I must have startled a couple of them and they took off and flew about 30 foot up into some trees across the road. Dang things
sounded like turbine helicopters when they took off

The ones at Morristown were supposedly wild, but extremely comfortable around people and loud noises.