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Ruffed Grouse (also known as Partridge or Drummer)
Contour feather (Body)

Ruffed Grouse (also known as Partridge or Drummer)

Kingdom: Animalia; Phylum: Chordata; Class: Aves; Order: Galliformes; Family: Phasianidae; Genus: Bonasa; Species: B. umbellus

Family: Phasianidae (Pheasants, Grouse, and Allies)

Shape
Symmetrical, rounded at the tip, broad and fan-like with a loose base.
Size
Approximately 2-3 inches in length; consistent with body contour feathers for a medium-sized forest bird.
Rarity
Common but elusive due to excellent camouflage and secretive nature.
Learn more about Ruffed Grouse (also known as Partridge or Drummer) in the encyclopedia →

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Description

A medium-sized, ground-dwelling bird with a short, thick beak. They are famous for their 'drumming' display where males rapidly beat wings to create a low-frequency thumping sound.

Colour & Pattern

Base color is a creamy white or buff. It features distinctive, irregularly shaped warm brown or tawny blotches/spots centered on the vane.

Barb Structure

Pennaceous at the distal (top) half for structure, becoming highly plumulaceous (downy) at the proximal base for insulation.

Texture & Surface

Soft, matte surface typical of forest floor dwellers; the feather is notably flexible and lacks the stiffness of a flight feather.

Key Features

White base with reddish-brown 'dripping' spots; distinct transition from solid distal vane to fluffy down at the base.

Habitat

Deciduous and mixed forests, particularly those with aspen, birch, or dense brushy undergrowth (early successional habitats).

Geographic Range

Common throughout Canada and the Northern United States, extending south into the Appalachian Mountains.

Ecological Role

Primary herbivore/omnivore and a key prey species for hawks, owls, and foxes. Their population often follows a 10-year cycle.

Similar Species

Sharp-tailed Grouse (more V-shaped markings) and Northern Bobwhite (smaller feathers with different barring).

Interesting Facts

Male Ruffed Grouse do not use their vocal cords to drum; the sound is a sonic boom created by air rushing into the vacuum behind their wings.

Condition Notes

Fair to Good. Shows some separation of barbs (splits) and slight wear at the tip, likely molted naturally or lost during ground foraging.