Yes its an owl feather, looks molted as well. I always admire them when I see them but let them lay where they fell . I recently saw some buzzard feathers under a roost an was suprised how pretty they actually are as well. Im such a bird lover that just seeing such things in the wild is a real treat!
Last week on a walk through the woods a coopers hawk flew right over my head with a squirrell in its talons. Was an amazing sight.