The Bird Doctor

Mark "The Bird Doctor" posted several new videos on his YouTube channel:

Reverse helmet camera mount. 4 wingsuit flock. Dr. Mark Duber AKA "Birddoctor"

Wingsuit Cloud surfing at Skydive Kentucky. Dr. Mark Duber AKA "Birddoctor"

I'm the red/Black/Gray Wingsuit. Fun Flock at "Work Stinks Boogie" at Start Skydiving. Dr. Mark Duber AKA "Birddoctor"