Spring fowl survey shows mixed results
The annual spring surveys of Wisconsin ruffed grouse and pheasant, showed below-average counts. By contrast, the results of the spring waterfowl breeding survey, indicate good numbers and excellent habitat conditions for migratory birds.
DNR wildlife biologists report a 5 percent decrease statewide, in ruffed grouse drumming activity from 2021.
“These results are not surprising,” said Brian Dhuey, DNR wildlife surveys specialist. “Ruffed grouse typically follow a 10-year population cycle.”
Drumming is a practice performed by male ruffed grouse, typically during mating season. During the ritual, males first beat their wings slowly, then more rapidly, to create a deep, thumping sound. The display usually lasts 5-10 seconds, during which the wings can beat approximately 50 times. Surveyors listen to this sound to identify and count male ruffed grouse each spring, during the mating season.
The department also reported a slight increase in pheasant observations, compared to 2021, in its annual spring ringnecked pheasant survey. However, the count remained below the most recent five-year average.
Wildlife managers use a measurement known as an abundance index, to assess the state’s wild pheasant population each year. The abundance index was the highest in the northwestern part of the state, but all three areas had an increase in their abundance index in 2022.
The DNR’s annual breeding waterfowl survey also took place this spring. The survey showed stable to increasing numbers for two of the state’s primary breeding waterfowl: mallards and blue-winged teal. The third primary species, wood ducks, showed a slight decline. The survey team also reported above-average wetland conditions.
Survey results point to a promising season this fall, for Wisconsin waterfowl hunters. Surveyors estimate the state’s breeding duck population at 591,762 birds, a 6 percent increase over the 2021 estimate, and 34 percent over the longterm average.
Canada goose numbers are up, as well, compared to 2021, consistent with the stable to increasing population seen over the past 10-15 years.
