Sherwood forresters

[damarshall]

hi could anyone give me some information.
My grandad James Henry davies  worked as a labourer sherwood forresters. What would he have done ie the kind of job.This must of been in the 1940 to 1945.
He then ended up in Wolfertswil St Gallen Switzerland.
He never like so many men spoke about his time .
Just trying to work out what kind of work he would of been doing