When  fall is fading and winter is approaching in NW Pa., I begin to notice the shrubs, trees and lay of the land that is often covered by lush growth and activity in the spring and summer. And at this time of year, in early spring,  the land is still apparent. But only for another week or so. Living by a large creek and swamp and being only a few miles away from The Roger Tory Peterson Nature Center my thoughts wander back to the food supply...