Poor weather is making it difficult for the D.N.R. to count the number of moose in the Upper Peninsula.
The D.N.R. surveys the moose population every two years.
Their census is based on the number of animals spotted by crews flying over prime moose ranges in Baraga, Iron, and Marquette Counties.
It is typically done in January, when the ground is covered with snow, making it easier to see the animals.
But, there's been too little snow cover for most of the past month and when the snow did fall, it was too windy to operate the fixed-wing aircraft.
The survey is only about 20% complete.
If it can't be finished this year, officials say they'll discuss whether to try again next year.