Ohio   Sheldon Marsh State Nature Preserve     LOCATION: Huron, Ohio DIRECTIONS: From Huron, Ohio drive 3 miles west on U.S. 6. HOURS: Open daily 8 a.m.-dusk. BEST TIMES: From mid-April to early June, and August to October. BIRDING HIGHLIGHTS: One of the finest spots in the Great takes for enjoying spring and fall migration. The area checklist contains more than 300 species and is notable for the wide variety of species. Waterfowl, hawks, shorebirds, marsh birds, and songbirds all pass through the area in great numbers.             Select Another Area St. Clair River Metro Beach Metro Park Lake Erie Metro Park Holiday Beach Conservation Area Point Peele National Park Pointe Mouillee State Game Area Oak Openings Metro Park Ottawa National Wildlife Refuge Magee Marsh & Crane Creek Sheldon Marsh State Nature Preserve Cyahoga Valley National Recreation Area Mentor Marsh Nature Preserves