Eurasian Kestrel (also known as the Common Kestrel or Old World Kestrel)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Falconiformes, Family: Falconidae, Genus: Falco, Species: F. tinnunculus
Family: Falconidae (Falcons and Caracaras)
- Shape
- Symmetrical vane with a gently rounded tip and clean margins, typical of a falcon tail feather providing agility in flight
- Size
- Approximately 4 to 5 inches long, consistent with a medium-sized falcon rectrix; typical Eurasian Kestrel tail length ranges around 4-6 inches
- Rarity
- Very Common, one of the most numerous and widely distributed birds of prey in the world
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Description
The Eurasian Kestrel is a small, slender falcon famous for its habit of hovering stationary over open fields in search of small mammals and insects. It features rufous upperparts spotted with black and a long, regularly barred tail. Females and juveniles show heavy barring on the tail, as seen in this feather, while adult males typically display a blue-grey tail with a wide black subterminal band
Colour & Pattern
Distinctive alternating bands of warm rufous-brown and creamy white/buff, crossed by bold dark brown or black transverse bars and ending in a dark subterminal band with a pale tip
Barb Structure
Tightly interlocked pennaceous structure with well-developed barbicels forming a strong, cohesive vane, with a small plumulaceous tuft at the very base
Texture & Surface
Smooth, firm, and matte in appearance, with a stiff yet flexible vane designed to withstand wind resistance during hovering flight
Key Features
Bold contrasting dark brown and buff/white transverse bars across both vanes, paired with a pale-tipped, rounded shape characteristic of a female or juvenile kestrel rectrix
Habitat
Open country, agricultural land, moorlands, scrub, semi-deserts, and urban areas where cliffs, buildings, or trees provide nesting ledges and open ground allows hunting
Geographic Range
Widespread across Europe, Asia, and Africa, with northern populations migrating to Africa and southern Asia for the winter, while western and southern European populations are largely resident
Ecological Role
Acts as a primary apex controller of small rodent and insect populations, serving as an important ecological indicator of agricultural ecosystem health
Similar Species
Merlin (Falco columbarius) or Lesser Kestrel (Falco naumanni), but the specific barring pattern and proportions align closely with the common Eurasian Kestrel
Interesting Facts
Kestrels have exceptional eyesight and can see ultraviolet light, allowing them to track the urine trails of voles and mice glowing in the grass
Condition Notes
Good condition, clean with intact barbs and no obvious fraying, fading, or parasitic damage, suggesting a freshly molted feather