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Eurasian Sparrowhawk (Northern Sparrowhawk)
Tail feather (Rectrix)

Eurasian Sparrowhawk (Northern Sparrowhawk)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Accipiter, Species: A. nisus

AI-generated identification · may be incorrect

Family: Accipitridae (Hawks, Eagles, Kites, and Old World Vultures)

Shape
Symmetrical to slightly asymmetrical vane, rounded tip, elongated broad outline with distinct dark barring characteristic of raptor tail feathers.
Size
Approximately 7-9 inches long, consistent with a female Eurasian Sparrowhawk tail feather. Tail feathers for this species typically range from 6 to 10 inches depending on sex.
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Description

A compact, stealthy bird of prey renowned for its incredible agility in dense woodland. Females are noticeably larger than males. They possess short, rounded wings and a long tail used for steering through tight spaces.

Colour & Pattern

Alternating dark grey-brown and pale grey-white or buff transverse bars across the web, typical of adult female or juvenile sparrowhawks. The rachis is robust and matches the background tone.

Barb Structure

Tightly interlocked pennaceous structure with strong hooklets (barbicels) forming a smooth, durable vane designed for aerodynamic efficiency. Base has a small, fluffy plumulaceous tuft.

Rachis & Barb Pattern

Central rachis is thick, strong, slightly curved, and convex on the upper surface with a longitudinal groove underneath. Barbs are dense, angled tightly outward from the rachis.

Texture & Surface

Smooth, firm, and stiff with a matte appearance. The vane is rigid to withstand high aerodynamic forces during agile forest pursuits.

Feather Placement

Tail (rectrix). Determined by the stiff, relatively symmetrical shape, strong structural integrity, and distinct transverse dark barring typical of steering feathers in raptors.

Key Features

Distinctive horizontal dark banding across a pale grey or brownish-grey background, stiff pennaceous structure, and rounded tip characteristic of an Accipiter rectrix.

Habitat

Woodlands, forests, parklands, and agricultural areas with scattered trees, as well as suburban gardens and urban parks where they hunt small birds.

Geographic Range

Widespread across the temperate and subarctic zones of the Old World, encompassing most of Europe, Asia, and parts of North Africa. Resident or partially migratory.

Ecological Role

Apex avian predator in woodland and suburban ecosystems, helping to regulate small bird populations and acting as an indicator of environmental health.

Similar Species

Eurasian Kestrel (Falco tinnunculus) or Cooper's Hawk (Accipiter cooperii, though outside natural range). Kestrel tail feathers are often more rufous with a broad subterminal black band.

Interesting Facts

Eurasian Sparrowhawks have adapted exceptionally well to suburban gardens, often using garden bird feeders as hunting grounds to ambush smaller songbirds.

Cultural Significance

Historically used in falconry for hunting small game and birds. Feathers and parts have occasionally been used in traditional displays or fly-tying.

Field Identification Tips

Look under garden trees, near fences, or roosting spots where sparrowhawks pluck prey. The clear gray-and-white or brownish barred pattern is diagnostic for female or juvenile Accipiter species in the UK.

Condition Notes

Good condition, clean vane with intact barbs, minor normal wear at the very tip, indicating a naturally molted feather.

Notes

Huddersfield garden