Tundra Swan (Whistling Swan) or Trumpeter Swan

A medium-sized body feather from a Swan. It is characterized by its brilliant white color and dual-texture, designed to provide both aerodynamic smoothing and intense insulation against cold water.

Pure snow-white across the entire vane and rachis; no melanin or structural iridescence present

Pennaceous at the distal tip (interlocked) transitioning to highly plumulaceous (fluffy) at the base for insulation

Silky and soft; the pennaceous portion is smooth while the plumulaceous base is downy; naturally water-repellent

Pure white color, large size for a body feather, and an extensive downy base typical of Anseriformes

Arctic tundra for breeding; lakes, rivers, bays, and agricultural fields during migration and wintering

Breeds in the Arctic; migrates across North America to winter on the Atlantic and Pacific coasts

Large herbivore that influences aquatic vegetation density; feathers provide nesting material for other smaller birds

Great Egret (thinner rachis), American White Pelican (stiffer texture), or Snow Goose (smaller size)

Swans have more feathers than most other birds, often exceeding 25,000 to maintain warmth in freezing water

Good; shows slight fraying at the tip and separation of the plumulaceous barbs, likely a naturally molted feather