Designated an Important Bird and Birding Area by the New Jersey Audubon Society, its resident and seasonal bird populations make the Marshlands an exceptional spot for bird watching. Raptor sightings, such as Osprey, Red-tailed, Coopers and Sharp-shinned Hawks, Great Horned and Eastern Screech Owls, and even the majestic Bald Eagle and occasional Merlin, are possible.
Spring sees the return of Red-winged Blackbirds and Tree Swallows, followed by migrating warblers and flycatchers. In summer there is nesting habitat for Wood Ducks, an active Great Blue Heron rookery (a nesting rarity for New Jersey), and secretive Green Herons. You may catch a glimpse of an elusive American Bittern or hear the song of a Marsh Wren. Winter finds the Marsh hosting a broad diversity of wintering ducks, including Gadwalls, Ruddy and Ring-necked Ducks, Mergansers, Teal, Wigeon, Northern Shovelers, and Northern Pintails. See calendar for local bird walks.