The Ohio Valley Birding Festival is an Evansville Audubon Society event in partnership with Wesselman Nature Society and John James Audubon State Park featuring guided spring migratory birdwatching hikes in southwestern Indiana and western Kentucky. Areas featured for guided tours include Goose Pond Fish and Wildlife Area; Bluegrass Fish and Wildlife Area; Wesselman Woods Nature Preserve; Eagle Slough Natural Area; John James Audubon State Park; Lincoln State Park; Squaw Creek Mine; Howell Wetlands; Cane Ridge Unit of Patoka River National Wildlife Refuge including Lake Gibson; Oakland City Unit of the Patoka River National Wildlife Refuge: Twin Swamps Nature Preserve; New Harmonie State Park: and a canoe trip to Hovey Lake. A "Big Day" of birding will be offered for the more adventuresome birders.