We have two Wisconsin phenology calendars, one from the Aldo Leopold Foundation in Baraboo, and one from the Friends of Pheasant Branch Conservancy in Middleton. They are both great calendars.
Here is the Pheasant Branch's list of what to look and listen for in January:
Crows in large flocks
Squirrels mating (note chasing games)
Jelly fungi on wet logs
Great horned owls calling
The ALF calendar's January list:
Black bear cubs being born
Black-capped chickadees begin spring courtship song
Red foxes, wolves, beavers, Canada lynx and Fox and Gray Squirrels begin mating
Great horned owls begin courtship activities
The Sand County Almanac by Aldo Leopold talks about a January thaw and skunks taking a break from their hibernation during it.
We will be looking for these things over the next few weeks and plan to write about what we find. We would also love to hear about what you find.