What is the difference between a logger and a lumberjack?

A lumberjack is a worker in the logging industry who performs the initial harvesting and transport of trees for ultimate processing into forest products. The term usually refers to a bygone era (before 1945) when hand tools were used in harvesting trees principally from virgin forest. Because of its historical ties, the term lumberjack has become ingrained in popular culture through folklore, media, and spectator sports.

The term lumberjack is somewhat archaic, having been mostly replaced by logger. When lumberjack is used, it usually refers to a logger from an earlier time before the advent of chainsaws, feller-bunchers and other modern logging equipment.

https://en.wikipedia.org/wiki/Lumberjack