A male American Kestrel (Falco sparverius). Did you know that American Kestrels are one of the few raptors that display sexual dimorphism in their plumage? That means you can tell the gender of an American Kestrel just by looking at its feathers!
Falco sparverius. Fauna boreali-americana, or, The zoology of the northern parts of British America pt. 2 London :John Murray,1829-1837. Biodiversitylibrary. Biodivlibrary. BHL. Biodiversity Heritage Library