Visitors can choose to explore the high ground, where mowed paths through the upland woods showcase an impressive display of spring wildflowers. Or, they can choose the low-lying areas, where they’ll find that wetlands and the banks of the West Branch DuPage River host an interesting array of marsh vegetation and wildlife. The preserve is a popular birding spot, known for hosting migrating warblers.
The Elsen's Hill area is a designated important birding area by the Audubon Society for its diverse, quality habitat for rare breeding birds and stopover migrants. More than 200 bird species have been observed in the Elsen's Hill area, including 36 species of warblers and all of Illinois' regularly occurring vireos, thrushes and flycatchers.
Birding points of interest include the ponds and oak savannah along the Willow Trail and the stretch of river along the Hickory Trail. The site is also known for its breeding red-headed woodpeckers, yellow-billed cuckoos and chestnut-sided warblers.
West DuPage Woods is on Route 59 about 0.5 mile north of Roosevelt Road (Route 38). A second entrance is on the north side of Gary’s Mill Road between Roosevelt and Winfield roads.