Wetlands and adjoining uplands provide habitat for about one third of all federally endangered and threatened plant and animal species and nesting spots for more than half of the country's birds. Since colonial times, these valuable wetlands have been disappearing. Twenty-two states have lost at least half of their original wetlands; several states have lost more than 90 percent of their wetlands. Reversing the trend of disappearing wetlands and enhancing the values and functions of new and existing wetlands involves "complex" solutions like wetland mitigation banking and tailoring clean-water strategies to specific watershed conditions. Reversing the trend also has a lot to do with applying "simple" strategies that protect, enhance, or even create wetlands. In the examples highlighted below, you'll read about simple efforts ranging from building a nesting box to creating bird perches and small-animal habitats to avoiding practices that interfere with "natural" vegetation growth.