Me in enemy helicopter: ooooohhhh elephants, let’s get in for a closer look!

BRRRRRRRD BRRRRRRRRRRRRRD

Pretty much, if I was shooting this with my D850 and 200-500mm at 500mm and f/7.2 and the owl was 20ft away the total depth of field would be 2.3 inches 5.8cm. That’s half that in front of the plane of focus and half behind. That’s about as shallow as I would want to go and so looking at that image I think it’s shot at maybe 300mm