Things You Might See on a Winter Walk 
Green Wood!
Chlorociboria aeruginascens or Green Elfcup is a fungus that stains wood green.
You might miss it on a summer walk. If you are lucky you might see the elfcups in the fall
Anybody Home?
A Wolf Tree. A Field Form Tree along the Wall of a Former Field.
You can easily see its spreading branches. This is an old Beech Tree.