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Ruffed Grouse (also known as Partridge or Mountain Pheasant)
Body Contour feather (Semiplume-integrated)

Ruffed Grouse (also known as Partridge or Mountain Pheasant)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Galliformes, Family: Phasianidae, Genus: Bonasa, Species: Bonasa umbellus

Family: Phasianidae (Pheasants, Grouse, and Allies)

Shape
Broadly spatulate with a rounded tip; the vane is slightly asymmetrical with a curved distal section.
Size
Approximately 2.5 to 3.5 inches in length. This is consistent with flank or rump feathers typically found on an adult Ruffed Grouse.
Rarity
Common. While widespread, their excellent camouflage and secretive nature make them more often heard (drumming) than seen.
Learn more about Ruffed Grouse (also known as Partridge or Mountain Pheasant) in the encyclopedia →

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Description

This feather belongs to the Ruffed Grouse, a medium-sized forest bird known for its fan-shaped tail and the male's rhythmic 'drumming' display. The plumage is a complex mosaic of browns, whites, and blacks designed for perfect concealment on the forest floor. They have a short crest and a dark 'ruff' of feathers on the neck that can be puffed out during displays.

Colour & Pattern

Base color of bright white with bold, chocolate-to-sepia brown transverse barring and splotches. The tip features a darker brown subterminal band. Patterning represents the 'grey' or 'intermediate' morph characteristic of the species.

Barb Structure

The distal portion is pennaceous and firmly interlocked, while the proximal half (base) is highly plumulaceous (downy) for insulation. An aftershaft is likely present but obscured by the dense down at the base.

Texture & Surface

Smooth and matte on the patterned pennaceous tip; very soft, airy, and silky at the downy base. Exhibits a high degree of flexibility characteristic of ground-dwelling birds.

Key Features

Bold, irregular dark brown splotches on a white field; distinctive large downy base; soft texture typical of Galliformes (game birds).

Habitat

Mixed deciduous and coniferous forests with dense undergrowth, early successional forests, and edges of abandoned farms or orchards.

Geographic Range

Non-migratory resident across much of North America, from Alaska across Canada to the northern and Appalachian United States.

Ecological Role

Primary consumer of buds, catkins, and berries; serves as a vital prey species for Goshawks, Great Horned Owls, and foxes. Their presence indicates healthy, diverse forest age structures.

Similar Species

Sharp-tailed Grouse feathers are more triangular and pointed; Spruce Grouse feathers lack the bright white contrast; Ring-necked Pheasant feathers are typically more iridescent or have linear shaft-streaks.

Interesting Facts

The male creates a 'drumming' sound not by vocalizing, but by beating its wings against the air so rapidly that it creates tiny vacuum pops. In winter, they grow 'snowshoes'—comb-like fringes on their toes—to help them walk on deep snow.

Condition Notes

Good condition. The barbs are mostly intact though slightly separated at the edges (velcro-like gaps), suggesting a naturally molted feather or one lost during movement through brush.