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Mute Swan
Secondary flight feather (Remiges)

Mute Swan

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

Family: Anatidae (Ducks, Geese, and Swans)

Shape
Broad and slightly asymmetrical with a rounded, blunt tip; the vane is relatively wide and curved.
Size
Estimated 18-22 cm (7-9 inches) in length; broad width typical of large waterfowl.
Rarity
Common (locally abundant in invasive and naturalized ranges).
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Description

A large, pure white feather belonging to the Mute Swan, a massive waterfowl identifiable by its orange bill and black knob. The bird itself is an elegant but aggressive swimmer with a wingspan of up to 2.4 meters.

Colour & Pattern

Pure, stark white across the entire vane, rachis, and calamus; no patterns, banding, or pigmentation, which is characteristic of adult Mute Swans.

Barb Structure

Densely interlocked pennaceous barbs providing a firm, wind-resistant surface for flight; plumulaceous (downy) at the very base near the calamus.

Texture & Surface

Smooth, firm, and oily/waterproof; has a matte to low-gloss finish designed to repel water.

Key Features

Large size, pure white coloration, thick white rachis, and the broad, sturdy structure typical of a heavy-bodied flyer.

Habitat

Found in shallow coastal waters, estuaries, ponds, lakes, and slow-moving rivers often near human parks.

Geographic Range

Native to Euro-Siberia; widely introduced and naturalized across North America, particularly the Great Lakes and Atlantic coast.

Ecological Role

Large herbivore that can significantly impact aquatic vegetation; in North America, they are often considered an invasive species that displaces native waterfowl.

Similar Species

Trumpeter Swan (Cygnus buccinator) or Tundra Swan (Cygnus columbianus). Distinguishable primarily by bird habitat and range as the feathers themselves are nearly identical.

Interesting Facts

Mute Swans are not actually mute; they make various grunting and hissing noises. They are known for forming monogamous pair bonds that can last many years.

Condition Notes

Good condition; minor ruffling at the tip suggests it was naturally molted; no significant parasite damage or fault bars visible.

Mute Swan | Feather Identifier