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Ruffed Grouse Survey Chart

Ruffed Grouse Survey Chart

Minnesota Department of Natural Resources

Minnesota Department of Natural Resources

ST. Paul, MN -(Ammoland.com)- Minnesota’s ruffed grouse spring drumming counts were significantly higher than last year across most of the bird’s range, according to a survey conducted by the Minnesota Department of Natural Resources.

“Ruffed grouse drums increased 34 percent from the previous year, with the increase happening in the northern part of the state,” said Charlotte Roy, DNR grouse project leader. “This may signal the start of an upswing in the grouse cycle that since 2009 has been in the declining phase.”

The increase is consistent with changes typical of the 10-year grouse cycle. The most recent peak in drum counts occurred in 2009. The cycle is less pronounced in the more southern regions of the state, near the edge of the ruffed grouse range.

Drumming is a low sound produced by males as they beat their wings rapidly and in increasing frequency to signal the location of their territory. Drumming displays also attract females that are ready to begin nesting.

Compared to last year’s survey, 2014 survey results for ruffed grouse indicated increases in the northeast survey region, which is the core of grouse range in Minnesota, from 0.9 drums per stop in 2013 to 1.3 in 2014. Drumming counts in the northwest increased from 0.7 drums per stop in 2013 to 1.2 in 2014. Drumming counts did not increase in the central hardwoods or southeast, with an average of 0.8 and 0.3 drums per stop, respectively.

Ruffed grouse populations, which tend to rise and fall on a 10-year cycle, are surveyed by counting the number of male ruffed grouse heard drumming on established routes throughout the state’s forested regions. This year observers recorded 1.1 drums per stop statewide. The averages during 2012 and 2013 were 1.0 and 0.9, respectively. Counts vary from about 0.6 drums per stop during years of low grouse abundance to about 2.0 during years of high abundance.

Drumming counts are an indicator of the ruffed grouse breeding population. The number of birds present during the fall hunting season also depends upon nesting success and chick survival during the spring and summer.

Minnesota frequently is the nation’s top ruffed grouse producer. On average, 115,000 hunters harvest 545,000 ruffed grouse in Minnesota each year, also making it the state’s most popular game bird. During the peak years of 1971 and 1989, hunters harvested more than 1 million ruffed grouse. Michigan and Wisconsin, which frequently field more hunters than Minnesota, round out the top three states in ruffed grouse harvest.

One reason for Minnesota’s status as a top grouse producer is an abundance of aspen and other ruffed grouse habitat, much of it located on county, state and national forests, where public hunting is allowed. An estimated 11.5 million of the state’s 16.3 million acres of forest are grouse habitat.

For the past 65 years, DNR biologists have monitored ruffed grouse populations. This year, DNR staff and cooperators from 11 organizations surveyed 121 routes across the state.

Sharp-tailed grouse counts stay steady

Statewide sharp-tailed grouse counts were higher in 2014 than in 2013, Roy said, although changes were not significant at the regional level. Observers look for male sharptails displaying on traditional mating areas, called leks or dancing grounds. This year’s statewide average of 9.8 grouse counted per dancing ground was similar to the long-term average since 1980. The 2009 average of 13.6 was as high as during any year since 1980. During the last 25 years, the sharp-tailed grouse index has been as low as seven birds counted per dancing ground.

Overall, sharptail populations have declined in some areas as a result of habitat deterioration. In recent years, the DNR has increased prescribed burning and shearing that keep trees from overtaking the open brush lands that sharp-tailed grouse need to thrive. This habitat management is important for healthy sharp-tailed grouse populations.

The DNR’s 2014 grouse survey report, which contains information on ruffed grouse and sharp-tailed grouse, will be available soon online at MNDNR.

About the Minnesota Department of Natural Resources (MNDNR)

The Minnesota Department of Natural Resources is the agency of the U.S. state of Minnesota charged with conserving and managing the state’s natural resources. The agency maintains areas such as state parks, state forests, recreational trails, and recreation areas as well as managing minerals, wildlife, and forestry. The agency is currently divided into sections Ecological Resources, Enforcement, Fish & Wildlife, Forestry, Lands and Minerals, Waterways, Parks and Trails, and Waters.

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