Pennsylvania Wildlife Update: How Bird Town Initiatives and Forestry Projects Target Grouse Recovery
The ruffed grouse is an upland game bird built for dense, brushy chaos. Rather than singing from an open perch, the male produces its courtship sound through rapid wing beats against the compressed air of its own chest, generating a hollow, subterranean rumble known as drumming. This display requires specific forest architecture: fallen logs at least a foot in diameter situated inside impenetrable thickets of young aspen, birch, or scrub oak where predators cannot easily ambush the bird.
Pennsylvania recognized the grouse as its commonwealth bird nearly a century ago, celebrating a species that thrived alongside early 20th-century timber clearcuts. Across the mid-1900s, regenerated sapling stands covered millions of rural acres. As those forests aged into closed-canopy pole timber, the dense understory disappeared. Grouse populations quietly contracted, abandoning southeastern and southwestern agricultural valleys and pulling back into rugged public land tracts across the Pennsylvania Wilds.
