This is not an owl or region that I familiar with, but I think that is good to ID the species. It sounds quite filtered, though, muffled, missing upper registers. With many sounds, I find my ability to readily recognize the species is dependent on hearing overtones.
Other that trimming, especially to get rid of jarring loud incidental noises in otherwise quiet recordings, unprocessed or only slightly amplified audio is usually my personal preference. A listener can process for themselves, but once filtered out, those subtleties cannot be returned. I believe having both the processed and unprocessed audio is also an option within guidelines.
Some notes are distinct by themselves and even a one second recording is good, but longer recording with multiple types of call notes, multiple song renditions, or demonstrating their spacing can be very helpful with others.