The Upper Delaware River Valley and its watershed provides an ideal habitat for the bald eagle. This includes clean water, ample food, and undisturbed stands of large deciduous and coniferous trees for perching and nesting. But until recently, your chances of actually seeing an eagle along the Upper Delaware were slim. That is changing, thanks to recent cooperative efforts to improve environmental conditions and to re-establish the bald eagle in the eastern United States. During the winter, when lakes and rivers freeze, bald eagles from the northern portions of the United States and Canada leave their nests and move southward to areas, like the Upper Delaware, with open water and reliable food supplies. Well over 100 bald eagles visit this area each winter.