Could be in different areas of the state if food is a problem for the deer.........but in south western Wi. I see alot of bucks hanging onto thier headgear through March. Most of these are younger bucks 1.5 and 2.5 year old, but there are some mature bucks that don't shed til then either,deep snow or not..............I don't think there is one hard and fast rule that says any buck will shed by a certain time, and if you want to shed hunt now, by all means do so, personally i have found through years of experience , that it pays to wait til at least the beginning of March.