
Ruffed Grouse (also known as Partridge or Drummer)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Galliformes, Family: Phasianidae, Genus: Bonasa, Species: Bonasa umbellus
Family: Phasianidae (Pheasants, Grouse, and Allies)
- Shape
- Broad and fan-shaped with a rounded tip; mostly symmetrical vane consistent with central or sub-central tail feathers.
- Size
- Approximately 12-16 cm (4.7-6.3 inches) in length; broad width typical of a forest-dwelling galliform tail feather.
- Rarity
- Common (regularly encountered in appropriate habitat).
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Description
These rectrices belong to the Ruffed Grouse, a medium-sized forest bird known for its mottled brown plumage and the male's 'drumming' display. The most iconic feature is the tail, which can be fanned out to show the broad black band seen in these specimens. They have two color morphs: red and gray, with these feathers leaning toward the gray-brown phase.
Colour & Pattern
Distinctive wide terminal black subterminal band followed by a light buff/white tip; the remainder of the feather features delicate wavy barring (vermiculation) in shades of brown, tan, and black.
Barb Structure
Pennaceous mostly throughout the vane; tightly interlocked with hooklets for a stiff structure, becoming plumulaceous (fluffy) at the base (superior umbilicus area).
Texture & Surface
Relatively stiff and matte; the surface is designed for structural durability and sound production during rapid flight flushing.
Key Features
Broad black subterminal band; light-colored terminal tip; fine, wavy 'mossy' brown and cream barring on the rest of the vane.
Habitat
Found in early-successional deciduous or mixed forests, often near edges or clearings with dense undergrowth (aspen and birch are favorites).
Geographic Range
Common across much of North America, including most of Canada, New England, the Great Lakes, and venturing south into the Appalachian and Rocky Mountains.
Ecological Role
Primary herbivore/seed eater; serves as a vital prey species for forest raptors like Goshawks and Great Horned Owls.
Similar Species
Spruce Grouse (lacks the broad black band and has a reddish tip) and Dusky/Sooty Grouse (larger, different coloration). Wild Turkey feathers are significantly larger.
Interesting Facts
The male creates a 'drumming' sound not with his voice or on a log, but by rapidly beating his wings against the air, creating a vacuum sound. During winter, they can grow 'pectinations' on their toes that act like snowshoes.
Condition Notes
Good; some splitting of the vane (separation of barbs) is visible, likely due to mechanical wear or handling. Tips show slight typical wear.