Unfortunately, I dont think its a typo.
They wont miss the PC and STG count when they do it on the spring leks. I would think that nesting success between pheasants and grouse would be comparable
Fall 2013 Hunting Forecast:
Pheasant brood surveys have been completed for 2013. Total pheasant numbers are down 70% compared to 2012 and are 75% lower than the 10-year average; this year's counts are the lowest since our brood survey began in 1985. The extreme heat and severe drought of 2012 had a remarkably deleterious effect on our pheasant numbers; we continued to lose young and adult birds late into the summer and fall. Though we had a mild winter, the spring nesting season was unusually cool and wet which also hampered nesting success in some areas. Beginning the nesting season with low numbers of breeding birds along with less-than-ideal nesting conditions have resulted in poor production this year.
Prairie-chickens and sharp-tailed grouse numbers are measured on early spring breeding grounds (leks). The same conditions that severely affected pheasant numbers have also had negative effects on the prairie-grouse populations. Lek surveys resulted in a 30% drop in prairie-chickens and a 42% drop in sharp-tailed grouse; these numbers were the second lowest counts in the last 20 years. Brood production and survival of prairie-grouse is unknown.
Habitat conditions are excellent. Adequate and timely rains all spring and summer have resulted in excellent grass cover as well as good to excellent stands in food plots. Shelterbelts experienced some mortality due to last year's drought but have grown well this year.