Amazing video! But out of the US...
I had my first flock of 4 (covenant limits) 8 years ago. I've only had layers. I've had a variety of breeds, raised from day old chicks. With my first flock, I dealt with two daytime coyote attacks 8 years apart, threats (and death) by a either hawks, owls, foxes, raccoons, rats, neighborhood dogs, cats and kids where the neighbors thought it was ok to let their pets and kids into my fenced yard. I live in the most suburban of suburbs, but I also live in Colorado. My last chicken from my first flock was carried off by a coyote in April. I was devastated.
After my first experience with chickens I completely tore apart the chicken run, rebuilt it to Fort Knox safety standards, and bought a new coop. New rules are free-ranging only when I can supervise, which is only a few hours a day. The girls get to forage and I turn over my garden so they can have access to worms and other stuff. They see me pick up the shovel and come running. They get a gourmet blue plate special at the end of the day consisting of dinner scraps, fresh fruits and vegetables, dried bugs, plus their regular Purina "free range" pellets. Dinner is their favorite part of the day.
So maybe they can fly over my 6' fence, but choose not to. I can say when I walk outside, everyone squats. T.M. you know what that means.

So maybe that's why I don't know that chickens can fly.
I love my girls. I recently bought a book, "How to Speak Chicken," and it has a lot of information about how amazing chickens are, superior to humans in many ways. I'm not surprised.
