Concerned about nesting magpies

In my neighbours garden is a tall tree a pair of magpies nest in every year. I got home today to discover that the tree is in the process of being cut down. I know the magpies have been nesting there as I have been observing them almost daily. My main concern is about their young. Would their eggs have hatched by now and the young flown the nest? The adult pair are sitting in a tree in my garden seemingly quite distraught!