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Mute Swan
Semiplume or transition contour-down feather

Mute Swan

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Anseriformes, Family: Anatidae, Genus: Cygnus, Species: C. olor

Family: Anatidae (Ducks, Geese, and Swans)

Shape
Symmetrical vane with a rounded tip and a soft, loose lower structure.
Size
Approximately 4 to 5 inches long, compact body feather typical of large waterfowl.
Rarity
Common and widely distributed due to human introductions, often locally abundant.
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Description

The Mute Swan is a majestic and large waterfowl known for its curving neck, pure white adult plumage, and distinctive orange bill with a black knob. Juveniles, from which this grey feather likely originates, possess a dusky grey-brown plumage before molting into their iconic white adult feathers.

Colour & Pattern

Uniform soft greyish-brown coloration across the pennaceous tip, fading to pale white or grey at the fluffy base. The rachis is pale cream to white.

Barb Structure

Pennaceous upper portion with tightly interlocked barbs transitioning smoothly into a plumulaceous (fluffy, downy) lower portion with loose barbs lacking strong hooklets.

Texture & Surface

Smooth and firm at the upper vane tip, transitioning to a soft, downy, and insulating texture at the base.

Key Features

Uniform greyish-brown upper vane transitioning abruptly into a fluffy white downy base, with a pale flexible rachis characteristic of large waterfowl body feathers.

Habitat

Large freshwater lakes, ponds, slow rivers, and sheltered coastal bays with abundant aquatic vegetation.

Geographic Range

Native to temperate regions of Europe and Asia, introduced and locally naturalized across North America, Australia, and parts of Africa.

Ecological Role

As large herbivores, they feed on submerged aquatic vegetation, which helps regulate plant growth in aquatic ecosystems, though high populations can sometimes overgraze habitats.

Similar Species

Tundra Swan or Trumpeter Swan, though juvenile Mute Swan feathers often show a warmer greyish-brown tone.

Interesting Facts

Despite their name, Mute Swans are not entirely silent and communicate through various snorts, hisses, and soft grunts. They form strong lifelong monogamous pairs.

Condition Notes

Good condition; clean with intact barbs and minimal wear, suggesting it was naturally dropped during a molt.

Notes

Dalkeith

Mute Swan | Feather Identifier