I'm with Yvonne - we have several Sycamore Trees (must be related to this gum tree) and my wife is constantly at me to cut them down - - the birds love the trees, so I've totally ignored her
...and what a big mess they make when they do. We have 3 across the back of our house and the bark peels every time we have rain, or it seems to be every time. Fine shot Don.