Illinois' best hope of protecting its endangered wetland birds may be to shore up their natural habitats.
Each spring, herons, egrets, blackbirds and terns migrate to this state's wetlands to mate, nest and breed. But these ecosystems, so rich in bird life, also are the most threatened, says Steve Bailey of the Illinois Natural History Survey. In fact, 90 percent of this state's original wetlands are gone. As a result, such species as the black and yellow-crowned night herons and the snowy egret are declining in Illinois.