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Eurasian Sparrowhawk (Northern Sparrowhawk)
Secondary flight feather (remige)

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 Harriers)

Shape
Symmetrical to slightly asymmetrical vane, rounded tip, with characteristic dark grey-brown barring across a paler grey-brown background.
Size
Approximately 5 to 6 inches long, consistent with a medium-sized raptor secondary flight feather.
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Description

The Eurasian Sparrowhawk is a small, agile bird of prey specialized in hunting woodland birds. It features short, rounded wings and a long tail for high-speed maneuvering through dense vegetation. Females are noticeably larger and heavier than males.

Colour & Pattern

Muted grey-brown background with striking darker charcoal-grey or brownish-black horizontal bars running perpendicular to the central rachis.

Barb Structure

Tightly interlocked pennaceous structure with well-developed barbicels forming a strong, durable vane.

Rachis & Barb Pattern

Sturdy central whiteish-grey rachis dividing symmetrical vanes with dense, evenly spaced barbs angled distally.

Texture & Surface

Smooth, matte finish with firm, rigid structure designed to withstand aerodynamic forces during flight.

Feather Placement

Wing, specifically an inner to middle secondary flight feather based on the relatively blunt, rounded tip and even width.

Key Features

Distinctive dark horizontal barring on a greyish-brown background with a rounded tip, typical of a medium raptor secondary feather.

Habitat

Woodlands, forests, forest edges, and frequently visits wooded suburban gardens and parks.

Geographic Range

Widespread across the temperate and subarctic regions of the Palearctic ecozone, spanning Europe and Asia.

Ecological Role

Apex avian predator in woodland ecosystems, helping to regulate small bird populations and maintain prey fitness.

Similar Species

Sharp-shinned Hawk (Accipiter striatus) in North America or other small Accipiter species, distinguished primarily by subtle variations in bar spacing and geographic distribution.

Interesting Facts

Eurasian Sparrowhawks have adapted remarkably well to suburban gardens where bird feeders attract abundant prey, making them regular visitors to backyards.

Cultural Significance

Historically used in traditional falconry, particularly by noblewomen and youths due to the male sparrowhawk's small size and cooperative hunting nature.

Field Identification Tips

Look near woodland edges, dense pine plantations, or underneath known raptor plucking posts.

Condition Notes

Good condition with intact barbs and minimal fraying at the edges, suggesting a relatively recent molt.