Mute Swan

Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Anseriformes; Family: Anatidae; Genus: Cygnus; Species: Cygnus olor · Anatidae (Ducks, Geese, and Swans) · Flight feather (Remex), likely a secondary flight feather.

Mute Swan

Species

Cygnus olor

Feather Type

Flight feather (Remex), likely a secondary flight feather.

Family

Anatidae (Ducks, Geese, and Swans)

Shape

Relatively symmetrical but with a slightly wider trailing vane; the tip is gracefully rounded and the shaft shows a gentle, natural curve. Broad and elongated profile typical of a large waterfowl.

Size

Approximately 19-20 cm (7.5-8 inches) in length as shown against the ruler. This is consistent with a small-to-medium secondary from an adult Mute Swan, though primaries would be much larger (30-40cm).

Rarity

Common (Abundant and widespread in suburban and park settings).

Color & Pattern

Pure white (immaculate) throughout the vane and rachis. There are no pigment markings, which is diagnostic for adult Mute Swans. Younger birds (cygnets) would show greyish-brown tones.

Barb Structure

Pennaceous structure that has become partially unzipped (separated) due to wear or environmental exposure. The barbs are stiff and provide water resistance, with a plumulaceous (downy) base near the calamus.

Texture & Surface

Smooth, firm, and oily. The surface is naturally waterproofed by preen oil. It has a matte to semi-glossy appearance common in large waterbirds.

Description

A classic white flight feather from a Mute Swan, a majestic and heavy-bodied waterbird. Adults are entirely white with an S-shaped neck and an orange bill with a black knob. They are one of the largest flying birds in the world.

Key Features

Large size, pure white coloration, robust white rachis, and the specialized aquatic barb structure typical of heavy waterfowl.

Habitat

Inland lakes, ponds, slow-moving rivers, and coastal estuaries. Common in parks and residential areas near water in Lafayette, Indiana.

Geographic Range

Native to Eurasia, but widely introduced and established throughout North America, including the Great Lakes region and various Indiana waterways.

Condition Notes

Fair to Good. The vane is significantly separated (unzipped), which happens naturally as a molted feather is moved by wind or water. The calamus appears intact, suggesting a natural molt.

Interesting Facts

Mute Swans are not actually mute; they make various grunts and whistles. They are highly territorial and can be aggressive while nesting. They were introduced to North America as decorative additions to estates and parks.

Ecological Role

Large herbivore; they consume significant amounts of aquatic vegetation and can impact local ecosystems when populations are high. They are often considered an invasive species in North America.

Similar Species

Trumpeter Swan (Cygnus buccinator) and Tundra Swan (Cygnus columbianus). Distinguishing individual white feathers is difficult, but Mute Swans are the most likely residents in suburban Indiana parks.

Notes

Lafayette, IN

Identified on 5/26/2026