The pileated woodpecker, native to North America is also its largest woodpecker. We heard the bird excavating the tree before we saw it. These loud, colourful birds populate our woods year round although we see them most often in April, as they begin nest building, and into the fall. Other animals benefit from their home construction. As these woodpeckers nest only once in the same tree, other birds and animals will often move in and feed on the insects the woodpecker has disturbed.