Input (grade 13): Experts recognize 17 to 19 subspecies which vary in appearance and range; there is disagreement over whether the distinctive Barbary Falcon is a subspecies or a distinct species.
Output (grade 8): There are 17 â "19 subspecies recorded, and each varies slightly in appearance and where they live. There is disagreement over whether the distinctive Barbary Falcon is a subspecies of the Peregrine or just a different species.