
American Kestrel (Sparrow Hawk)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Falconiformes, Family: Falconidae, Genus: Falco, Species: F. sparverius
Family: Falconidae (Falcons and Caracaras)
- Shape
- Symmetrical vane, slightly rounded tip, elongated rectangular to slightly tapered outline
- Size
- Approximately 4 to 5 inches long, consistent with a central or inner tail feather of a small falcon
- Rarity
- Common (regularly encountered and widespread across appropriate open habitats)
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Description
The American Kestrel is the smallest and most common falcon in North America. Known for its striking plumage, rusty back and tail, and characteristic head markings, it is a fierce and agile hunter of insects and small rodents.
Colour & Pattern
Rich rufous-chestnut base with striking horizontal black bars, a prominent broad subterminal black band, and a white tip
Barb Structure
Pennaceous vane with tightly interlocked barbs and barbules along the upper portion, transitioning to slightly looser semiplume-like structure near the base
Texture & Surface
Smooth, slightly glossy vane surface with a firm, flexible texture typical of raptor tail feathers
Key Features
Distinctive rufous-chestnut coloration with bold black horizontal bars, a broad subterminal black band, and a distinct white tip on a tail feather
Habitat
Open country, grasslands, pastures, desert scrub, agricultural fields, and urban/suburban edge habitats with sparse trees or perches
Geographic Range
Widespread throughout North and South America, ranging from northern Alaska and Canada down to Tierra del Fuego
Ecological Role
Acts as an important predator controlling insect and small rodent populations in grassland and agricultural ecosystems
Similar Species
Merlin or Sharp-shinned Hawk, but distinguished by the vibrant rufous coloring and distinct horizontal black barring unique to kestrel tail feathers
Interesting Facts
American kestrels can see ultraviolet light, which allows them to track urine trails left by voles and mice in the grass
Condition Notes
Good condition, showing minor wear at the very tip but generally intact barbs and a strong rachis