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Common Kingfisher (Eurasian Kingfisher, River Kingfisher)
Flight feather (Remex - Primary flight feather)

Common Kingfisher (Eurasian Kingfisher, River Kingfisher)

Kingdom: Animalia > Phylum: Chordata > Class: Aves > Order: Coraciiformes > Family: Alcedinidae > Genus: Alcedo > Species: Alcedo atthis

AI-generated identification · may be incorrect

Family: Alcedinidae (Kingfishers)

Shape
Markedly asymmetrical with a narrow, stiff leading edge (outer vane) and a broader trailing edge (inner vane). Elongated and slightly curved along the length with a blunt, tapered tip.
Size
Approximately 5.5 to 6.5 cm in length and 1.0 to 1.3 cm in width, consistent with the primary remiges of a small coraciiform bird.
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Description

A striking primary flight feather from the Common Kingfisher (Alcedo atthis). The bird is a iconic small riverine species renowned for its brilliant electric blue upperparts, orange-rufous underparts, long dagger-like bill, and dazzling straight-line flight along waterways.

Colour & Pattern

Striking combination of vivid structural cyan-blue on the outer vane and edge, transitioning to a dark brownish-black/charcoal gray along the inner vane. The clear central shaft (calamus/rachis) transitions into dark horn color.

Barb Structure

Densely packed pennaceous barbs on both vanes providing a firm aerofoil surface. Interlocking barbules with hooklets are well-developed, ensuring structural integrity during high-speed diving and flight.

Rachis & Barb Pattern

Stiff central rachis, pale and translucent at the calamus, darkening to dark brown/black toward the tip. Barbs on the outer vane exhibit microscopic structural coloration (Tyndall scattering) creating brilliant iridescent turquoise/blue.

Texture & Surface

Smooth, firm, and slightly glossy. Highly rigid inner and outer vanes designed for resistance against air and water impact during diving.

Feather Placement

Primary flight feather (wing remex). The strong asymmetry and curved rachis indicate origin from the outer wing region.

Key Features

Distinctive brilliant turquoise-blue outer vane paired with a dark slate/brownish-black inner vane; small, compact size (around 6 cm); stiff asymmetrical primary wing feather structure.

Habitat

Slow-moving or still freshwater streams, rivers, canals, lakes, and ponds rich in small fish, clear water, and suitable perching and bank-nesting locations.

Geographic Range

Widespread across Europe, Asia, and North Africa. Mainly resident in mild regions, but northern and eastern populations migrate south to warmer wintering grounds.

Ecological Role

Top avian predator in freshwater micro-ecosystems, consuming small fish, aquatic insects, and crustaceans. Acts as an excellent bioindicator of clean, unpolluted water systems.

Similar Species

Blue Jay (Cyanocitta cristata) feathers feature bold black barring; Steller's Jay (Cyanocitta stelleri) feathers are darker with distinct cross-barring; Belted Kingfisher (Megaceryle alcyon) feathers are significantly larger with distinct white markings/spots.

Interesting Facts

The brilliant blue colors on kingfisher feathers are structural rather than pigment-based; microscopic air-filled structures scatter light to produce intense iridescent blue tones. Kingfishers hit the water at high speeds when diving for prey, requiring durable, tightly structured feathers.

Cultural Significance

Historically featured in traditional arts and folklore across Eurasia as a symbol of peace, brightness, and tranquility (halcyon days). Kingfisher feathers were historically used in intricate Chinese feather inlay art (Tian-tsui).

Field Identification Tips

Look along riverbanks, wooden perches, or near nesting burrows in sandy banks during late summer molt periods (July–September).

Condition Notes

Good condition overall. Slight fraying at the tip and lower inner vane barbs, indicative of natural wear or molt.

Common Kingfisher (Eurasian Kingfisher, River Kingfisher) | Feather Identifier