This old tree is in my old yard. We moved next door when we moved so we have the whole block. Over the years we kept thinking it would die. It is home to birds, squirrels and many insects. At one time there was an old chain growing out of one of the branches, but that one finally died.
Our tree man tried for years to talk us into cutting it down since it was so hollow, but we wouldn't. We would sit in the window and watch the new baby birds learn to fly. The baby squirrels poke their heads out to see the world for the first time. Every winter we were sure it had died but every spring it burst forth full of life, from the inside out.
I just love this old tree and we have decide to let it die a natural death and live as long as it wants. Its ugly and most people wouldn't want it in their yard even if it was a ways off...... but we do.