While owls sometimes utilize their wings to jump by using the air which flows under them, it isn’t jumping in the way that most of us think of it. This is just another way for an owl to swoop down on its prey when they spot something on the ground that looks appetizing.
If an owl wants to ‘jump’, it usually gives its wings a few flaps in order to get the necessary extra movement. Owls are amazing hunters and their ability to fly gracefully and quickly through the air is part of what makes them able to get their prey on the ground before it even knows what has happened.