
The Ruffed Grouse, bonasa umbellus, is a medium-sized bird native to North America, known for its camouflaged plumage and the distinctive ruff of feathers around its neck, which gives the species its common name. Males and females have a mottled brown, black, and white appearance that allows them to blend seamlessly into their woodland habitats. This bird measures approximately 40 to 50 cm in length, including a short, fan-shaped tail that features a dark band near the end. The Ruffed Grouse is celebrated for its drumming display, a deep, thumping sound created by the male as it beats its wings in the air, which serves as a call to females and a territorial signal to other males.

| Population: | Listed as Least Concern, but local populations can be sensitive to habitat changes |
| Generation Length: | 3 years |
| Average Weight: | 500-750 grams |
| Average Length: | 40-50 cm |
| Lifespan: | 5-8 years in the wild |
| Diet: | Varies with availability; includes vegetation in summer and buds, twigs in winter |
| Conservation Status: | Least Concern (LC) |
Inhabiting deciduous and mixed forests across Canada and the northern United States, the Ruffed Grouse is adapted to cold climates, with dense plumage and feathered legs that act as snowshoes in winter. They are non-migratory, relying on the diverse forest ecosystem for food and shelter throughout the year. The birds are ground dwellers, foraging for buds, leaves, berries, and insects, though they can take flight with rapid, powerful wingbeats when startled.
The diet of the Ruffed Grouse is notably varied, changing with the seasons. In the spring and summer, it includes a mix of green leaves, insects, and berries, shifting to buds and twigs of trees such as aspen and birch in the colder months. This adaptability in feeding habits helps the Ruffed Grouse survive in its forested environment, where food availability fluctuates.
Reproduction for the Ruffed Grouse begins in the spring, when males establish territories and perform their characteristic drumming to attract mates. Nests are simple depressions on the ground, usually at the base of a tree or bush, where the female lays a clutch of 8 to 14 eggs. She alone incubates the eggs and cares for the precocial chicks after they hatch.
The population of the Ruffed Grouse fluctuates naturally over a 10-year cycle, influenced by habitat conditions, predation, and disease. While not currently considered endangered, habitat loss and fragmentation pose significant threats to their numbers in some areas. Conservation efforts focus on maintaining and restoring forest habitats to support healthy populations of this iconic game bird.
Walking, flying
Solitary or in small family groups
Capable of short, rapid bursts of flight
Omnivore
Deciduous and mixed forests, particularly with thick underbrush
Sedentary, with limited movements within their home range
North America, mainly in the United States and Canada
Temperate forest environments
Foxes, hawks, owls, and humans
Buds, leaves, berries, seeds, and insects
Feeds on a mix of leaves, fruits, seeds, and insects, with diet varying by season
Varies with availability; includes vegetation in summer and buds, twigs in winter
Polygynous
8-14 eggs
23-24 days
Ruffed Grouse can create drumming sounds using their wings. This unique sound helps establish territory.
The drumming is produced by rapidly beating their wings, creating an air vacuum. This sound can be heard over long distances in the forest. It's mainly males who drum, especially during the breeding season, to attract females and warn off rivals.



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