All animals need some form of shelter in their habitat.
Many species use shrubs and trees for protection from predators as well as the weather.
Birds, squirrels, and many other animals seek nesting sites in trees and bushes. For ground inhabiting animals, shelter can be enhanced easily in many backyards. You can provide shelter in your yard in several ways. Plant a variety of shrubs, trees, and herbaceous plants. Some species of birds may find these attractive as nesting sites.