What species is considered a subspecies of the peregrine falcon?

The Barbary falcon is considered a subspecies of the peregrine falcon due to its close genetic and morphological characteristics. This relationship highlights how different populations can evolve distinct traits while still remaining within the same species classification. The Barbary falcon is particularly recognized for its adaptations to various environments and its geographical distribution, often found in northern Africa and parts of southern Europe. These adaptations, along with its similarities in plumage and hunting style to the peregrine, solidify its status as a subspecies rather than a completely separate species.

The other options represent different species altogether. The American kestrel is a small falcon known for its distinct coloration and smaller size compared to the peregrine. The merlin, although a member of the falcon family, is also a separate species, recognized for its unique hunting strategy and habitat preferences. The prairie falcon, while related, is classified as a distinct species with its ecological niche and behavioral traits, further differentiating it from the peregrine falcon and its subspecies.