Unless the rest of the winter gets really cold and a ton of snow the turkeys are going to come out of this winter in great shape. I saw a map of the current snow levels in MN right now and the southern half of the state currently doesn't have any show. Not too mention the temperatures have been extremely mild so like Charlie said unless the spring is wet and cold I would expect to do really well. I think in these upper midwestern states are going to have good years and bad years for the weather standpoint and the turkey populations will follow.
If the winter were to finish off mild and then have another mild winter next year the turkey population in MN could literally explode.
"Strength does not come from physical capacity. It comes from an indomitable will." --Mahatma Gandhi
"Never confuse a single defeat with a final defeat."--F. Scott Fitzgerald, American writer