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American Kestrel (Sparrow Hawk)
Tail feather (retrix)

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

American Kestrel (Sparrow Hawk) | Feather Identifier