hearing
yes owls have very sharp hearing.
Because owls are generally active at night, they have a highly developed auditory (hearing) system
All owls have incredibly tiny 'nostrails' on their beak, which allows them to smell and breathe, though their sense of smell isn't unlike ours. Not too strong, yet not weak.
have good hearing
The Owl. While Bats can maneuver easily at night they use Echo Location, and are not a Bird.
if i have researched correctly, they use their great sense of hearing and eyesight.
owls have good hearing to hear who is comming
This is an adaptation.
Just about all of them. Humans have terrible hearing. Bats, Fish and lower level species of animals are about the only things I can think of. However, bats use echolocation to make up for their bad hearing and fish use a lateral line system to detect danger.
They need hearing to help them catch their prey.
Owls catch their food using hearing, eyesight, silent flight and strong talons, gripping the prey in their feet.
owls have very, very good vision. they can see in almost no light. they also have an excellent sense of hearing, and most owls fly silently so that they can hear any sounds around them. they cannot, however, use echolocation like bats as portrayed in the "silverwing" books.