Why did God create the Pileated Woodpecker....? Or did it just happen to evolve....?

It bores out a large hole in trees to nest and raise their little ones and then they abandon the nest and do not return the following year. Other birds who could not bore their own holes use it, so that is at least one purpose they have. Actually this holds true for all the woodpeckers. So woodpeckers are very useful in the forest.~