Mallard (Wild Duck)

A classic 'speculum' feather from a Mallard. These ducks are medium-sized with males having iconic green heads and females being mottled brown. This feather provides the flash of blue seen on their wings during flight.

Striking iridescent blue-to-purple patch (structural color) bordered by a thick black subterminal band and a crisp white terminal tip.

Densely interlocked pennaceous barbs on the distal portion to form a solid vane for flight; plumulaceous (downy) at the base for insulation.

Glossy and smooth on the iridescent section, slightly oily to the touch for water repellency, with a stiff, resilient vane.

The combination of the iridescent blue patch followed by a sharp black band and a broad white tip is diagnostic for Anas platyrhynchos.

Highly adaptable, found in wetlands, lakes, ponds, rivers, marshes, and urban parks with water access.

Widespread across the Northern Hemisphere (North America, Europe, Asia), with many populations migratory and others year-round residents.

Generalist ventivore and herbivore; serves as a major food source for predators and acts as a disperser for aquatic plant seeds.

American Black Duck (similar but usually lacks the white trailing edge) and Northern Shoveler (smaller speculum with different border colors).

The blue color is structural, not pigment-based, meaning it is created by the microscopic shape of the feather reflecting light. Mallards are the ancestors of almost all domestic duck breeds.

Good condition. The white tip is clean, indicating a relatively recent molt or a healthy bird. Minor separation of barbs near the base is normal for a shed feather.