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Eurasian Kestrel (also known as Common Kestrel, European Kestrel, or Old World Kestrel)
Contour feather, specifically a body feather or scapular

Eurasian Kestrel (also known as Common Kestrel, European Kestrel, or Old World Kestrel)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Falconiformes, Family: Falconidae, Genus: Falco, Species: Falco tinnunculus

Family: Falconidae (Falcons and Caracaras)

Shape
Symmetrical vane with a rounded tip, overall oblong shape with evenly curved margins.
Size
Approximately 7-8 cm long including the calamus, estimated by comparison with the adjacent 1 euro coin (diameter 23.25 mm). Typical contour feathers for this species range from 5 to 10 cm.
Rarity
Very Common
Learn more about Eurasian Kestrel (also known as Common Kestrel, European Kestrel, or Old World Kestrel) in the encyclopedia →

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Description

The Eurasian Kestrel is a small falcon famous for its hovering hunting behavior, often seen stationary in mid-air over fields. Females and juveniles feature heavily barred brown upperparts, while males have a grey head and tail. Measuring around 32-39 cm with a 65-82 cm wingspan, they feed primarily on small mammals like voles, as well as large insects and small birds.

Colour & Pattern

Warm brown or chestnut-buff base color featuring prominent, dark brown transverse bars (v-shaped markings) and pale buff-to-whitish terminal fringes. The rachis is whitish-cream near the base and darkens to match the vane color distally.

Barb Structure

Tightly interlocked pennaceous structure along the upper vane, transitioning to a soft, plumulaceous base with a small, wispy afterfeather near the superior umbilicus. Barbs are intact with good structural integrity.

Texture & Surface

Smooth, firm, and matte texture with rigid pennaceous vanes that provide good aerodynamic contouring and water shedding.

Key Features

Distinctive warm brown background crossed with dark, arrow-shaped or transverse bars and pale tips, typical of female or juvenile Eurasian Kestrel upperparts contour feathers.

Habitat

Open countryside, agricultural land, scrublands, moorlands, semi-deserts, and urban areas, avoiding dense uninterrupted forests.

Geographic Range

Widely distributed across Europe, Asia, and Africa, with resident populations in temperate regions and migratory habits in northern zones.

Ecological Role

Acts as an important apex avian predator of small rodents, helping to regulate agricultural pest populations and serving as a bio-indicator for grassland ecosystem health.

Similar Species

American Kestrel (Falco sparverius), which has similar barred patterns but is smaller with distinct slate-blue crown patches in males and different geographic origins.

Interesting Facts

Eurasian Kestrels have exceptional eyesight and can see ultraviolet light, which allows them to track the urine trails left by voles in the grass.

Condition Notes

Good condition with minor wear at the very tip, completely intact barbs, and no visible fault bars or parasite damage. Grade: Good.

Eurasian Kestrel (also known as Common Kestrel, European Kestrel, or Old World Kestrel) | Feather Identifier