The river has been low; for weeks rocky sandbars were welcoming hiking trails WITHIN the Susquehanna’s banks. Steady rains in the last two days have run off the highlands and mountains, and slowly the river bottom is being covered. Autumn grasses give cover to Mourning Doves seeking protection from the Cooper’s Hawk squint. And the mid-river marshlands hold fish and insects for migrating waterfowl and Great Blue Heron and the resident Bald Eagle pair, circling just beyond those trees, tiny specks to the unaided eye. The river is rising, again.