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Red Kite
Outer Rectrices (Tail feathers)

Red Kite

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Milvus, Species: Milvus milvus

AI-generated identification · may be incorrect

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

Shape
Asymmetrical, elongated, and slightly tapered towards the tip. The inner vane is significantly broader than the outer vane, which is characteristic of the outer feathers in a deeply forked tail.
Size
Approximately 18-24 cm in length. The width of individual feathers is roughly 4-6 cm. This size is typical for the outer tail feathers (R5-R6) of an adult Red Kite.
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Description

The Red Kite is a medium-large raptor known for its incredible agility and deeply forked tail. Adult birds have a reddish-brown body with pale grey heads. In flight, they are unmistakable due to their long, flexible wings with white 'hand' patches and the constant twisting of their forked tail to steer while gliding.

Colour & Pattern

The feathers display a striking bicolored pattern: a warm, rusty-brown or rufous-buff on the outer vane and distal portion, transitioning to a clean white or pale cream on the inner vane near the base. Faint dark subterminal barring may be present but is subtle.

Barb Structure

Tightly interlocked and pennaceous throughout most of the vane to provide aerodynamic stability, with a small plumulaceous section at the base for insulation. Hooklets are well-developed.

Rachis & Barb Pattern

The rachis is thick, stiff, and ivory-white in color, providing strong structural support for flight maneuvering. The barbs are densely packed and emerge at an acute angle, maintaining a smooth, solid sheet.

Texture & Surface

Smooth, stiff, and somewhat glossy on the upper surface. The texture is engineered for high-performance gliding, with leading edges feeling quite rigid and trailing edges slightly more flexible.

Feather Placement

Tail (Rectrices). Specifically, these are the outer tail feathers that form the characteristic 'fork' of the Red Kite's tail. The curvature and asymmetry indicate their position toward the edge of the tail fan.

Key Features

Distinctive white and rufous-brown bicoloration, white rachis, and the specific asymmetry associated with a forked tail rectrix. The lack of heavy banding distinguishes it from many other Buteo or Accipiter species.

Habitat

Open woodlands, farmlands, and pastures with scattered trees. They require tall trees for nesting but prefer open country for hunting and scavenging.

Geographic Range

Primarily across Europe and Northwest Africa. Majority of the population is resident in Western Europe (e.g., UK, Spain, Germany), with some eastern populations migrating south for winter.

Ecological Role

Primarily a scavenger and opportunistic predator. They play a vital role in cleaning up carrion from the landscape. They are often viewed as an 'umbrella species' for conservation efforts in rural landscapes.

Similar Species

Black Kite (Milvus migrans) feathers are generally darker and lack the bright rufous tones. Common Buzzard (Buteo buteo) feathers are more heavily barred and have a different shape, as buzzards have rounded rather than forked tails.

Interesting Facts

Red Kites are famous for collecting unusual items for their nests, including scraps of fabric, plastic, and even underwear. Shakespeare even warned in 'The Winter's Tale' to watch your linen when the kite builds.

Cultural Significance

In Medieval England, Red Kites were protected scavengers that helped clean the streets of London. Historically, kite feathers were sometimes used in fletching, though their primary significance today is as a symbol of successful wildlife conservation.

Field Identification Tips

Look for these beneath large trees in open farmland or near communal winter roosts. Red Kites often molt their tail feathers in pairs during the summer months. The white rachis is a great diagnostic tool in the field.

Condition Notes

The feathers appear to be in Good to Excellent condition, likely representing fresh molted specimens. Little evidence of wear or sun-bleaching is present, and the barbs are mostly intact without significant fault bars.

Notes

glänas field

Red Kite | Feather Identifier