Common Kingfisher (also known as Eurasian Kingfisher or River Kingfisher)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Coraciiformes, Family: Alcedinidae, Genus: Alcedo, Species: Alcedo atthis
Family: Alcedinidae (Kingfishers)
- Shape
- Symmetrical to slightly asymmetrical, elongated with a rounded to slightly spatulate tip, stiff vane without significant emargination
- Size
- Approximately 1.5 to 2.2 inches in length. Kingfisher retrices are notably short, consistent with their compact body and aerodynamic diving shape.
- Rarity
- Common throughout its range, though shy and often only seen as a 'blue flash' low over the water.
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Description
These feathers belong to the jewel of the river. The Common Kingfisher is a small, sparrow-sized bird with a massive bill, short tail, and electric-blue upperparts that contrast with warm orange underparts. It is famous for its hover-and-dive fishing technique.
Colour & Pattern
Brilliant structural blue. The outer web/tip shows a deep cobalt to ultramarine blue, while the inner web or base transitions into a lighter cyan or azure. No barring is present; the color is solid with high-intensity iridescence.
Barb Structure
Tightly interlocked pennaceous barbs throughout most of the vane surface, providing a smooth, water-resistant surface; slightly plumulaceous at the extreme base near the calamus.
Texture & Surface
Smooth, glossy, and slightly waxy. The surface has a high luster due to the structural microscopic arrangement of keratin that reflects blue light (Tyndall scattering).
Key Features
Electric structural blue coloration without banding, short and stiff morphology, and a dark rachis. The lack of black bars distinguishes it from Blue Jay feathers.
Habitat
Found near clear, slow-flowing or still water including rivers, canals, lakes, and coastal areas with overhanging branches for perching and steep banks for nesting.
Geographic Range
Widespread across Eurasia and parts of North Africa. Many populations are residents, but northernmost birds migrate south to avoid frozen waters.
Ecological Role
Apex predator of small fish and aquatic insects in its micro-habitat. They serve as excellent bio-indicators of water quality and healthy fish stocks.
Similar Species
Blue Jay (distinguished by black barring), Mountain Bluebird (more delicate, different shape), or Malachite Kingfisher (smaller, different range).
Interesting Facts
The structural blue of these feathers is not caused by pigment but by light interference. The kingfisher's beak design inspired the shape of Japanese bullet trains to reduce noise when entering tunnels.
Condition Notes
Excellent condition. The vanes are intact with no sign of 'fault bars' or significant wear, suggesting they are freshly molted or from a healthy adult.