Watch The Northern Marsh: Part 1

In "part one" of this three part series on "The Northern Marsh", it all begins with waterfowl migration. As birds start settling into their wetland homes or dropping down to rest and feed, species such as northern shovelers, wood ducks, American wigeons, hooded mergansers, redheads, green-winged teal, and tundra swans, are given a closer look.