Many different species of mammal make their home in the Marsh-Billings-Rockefeller NHP. A variety of wooded areas, open fields, and wetlands allow for a diversity of habitats. Eastern chipmunks, red and grey squirrels, woodchucks, and white tail deer are common sights in the park, especially on the edge of wooded habitat. At night raccoons and skunks roam the property. On rare days, you might even be able to spot a fox, fisher, or a bear.