Where have the trees gone?

"Woke up this mornin', got those 'what's happened to that forest outside my bedroom window' blues". What once looked like Birnam Wood marching on Dunsinane* has gone, the self-sown silver birches that formed a line in a field between ul. Trombity and ul. Sarabandy have been cut down. To make way for what? Arable crops? Housing?

* Note for my non-native speaking readers: A reference to Shakespeare's Macbeth