Final answer:
The woodpecker in this scenario is an autogenic ecosystem engineer, meaning it creates or modifies its own habitat and benefits other species.
Step-by-step explanation:
The woodpecker in this scenario is classified as an autogenic ecosystem engineer. An autogenic ecosystem engineer is a species that creates or modifies its own habitat, which then benefits other species. In this case, the woodpecker drills a hole into a tree, creating a cavity that another species of bird uses for nesting.