A 4-mile wildlife drive winds through forest, open prairie and savanna habitats. Visitors on the auto tour may leave their vehicles where observation decks are located. Visitors may have the opportunity to view and photograph plains bison, Rocky Mountain elk, white-tailed deer, prairie dogs and other wildlife native to the area along the drive.
Over 2 miles of hiking trails outside the bison and elk enclosure offer numerous opportunities to view warblers, wood ducks, kingfishers, hooded mergansers, black-crowned night-herons and other bird species. Warbler numbers peak in the month of May and in late October and bald eagles commonly stage on the refuge in November and late winter. Hardy species like pileated, hairy, downy and red-bellied woodpeckers are year-round residents at Sullys Hill. The fully accessible education and visitor center features a full wall of windows and an outside patio to observe a host of species frequenting the birding garden. Common species include rose-breasted grosbeak, American goldfinch, black-capped chickadee, and white breasted nuthatch.