[UPDATED: DECEMBER 31, 2012] Seeing a bald eagle in the wild is an incredible experience. I can still vividly remember my encounter with the majestic bird at Umbagog Lake State Park in New Hampshire back in August 2001. With their striking white heads and tails, and massive wingspans, mature bald eagles are an impressive and unforgettable sight. Like most birds, bald eagles fly south for the winter and pass right through our neck of the woods by soaring down the Hudson and Delaware Rivers. They begin their migration in December, with the highest concentration of eagles visible during the months of January and February. Eagle viewing is a popular winter activity for bird and nature lovers in and near New York City. We've got the scoop on how your family can marvel at our national bird, either by joining an organized event or heading out on your own.