Posted by: Julie Webster, Zoo volunteer and Backyard Habitat class participant Editor’s note: Woodland Park Zoo is once again offering its popular Backyard Habitat classes to help you bring more wildlife to your yard. Former class participant and zoo volunteer, Julie Webster, shares how the lessons she learned have transformed her urban garden. When I first signed up for Woodland Park Zoo’s Backyard Habitat workshop, I was already mindful of the four basic needs I had to meet to support local wildlife in my yard: food, water, shelter and a place to raise young. But it was in the workshop that I really came to understand the importance of cover and plant layering—the essentials to diversifying a habitat—and how these principles could be applied even in a small, urban garden. Maple in my yard before I learned about layering through the Backyard Habitat classes. Photo courtesy of Julie Webster. Layering isn't specifically listed in the four basic needs, but go to the fores