Your hen was lucky then.
And that was one bold owl.
Screech owls are small, a bigger owl would have carried her off.
I’ve lost several chickens in the beginning to different predators.
The surviving chicken learned, and taught the offspring. As result, I haven’t lost any in a very long time.
(I don’t mind so much loosing a chicken here or there to a wild animal = circle of life. What got/gets me, is roaming pets breaking into my pen/coop and killing every single bird, just for the heck of it. Which has happened to me twice!)