What is the name of Shakespeare's forest?

Answer 1

Birnam Wood. According to Shakespeare, Macbeth would never be vanquished until Birnam Wood became Dunsinane. The witches had predicted that Macbeth would never be defeated "until Birnam Wood marched." Then, in Scene 4 (of Act 3, I think) Malcolm, with MacDuff, ready to invade Macbeth's castle, tells his men to "hew him down a bough, and bear,t before him" as camouflage - so the woods marched !!.