Natural Discoveries is a series of free nature-themed programs designed for ages seven to adult. Participants in the program who complete certain hike requirements are eligible to receive awards. See the Natural Discoveries link on the park district website for award details. Many species of birds call Ohio home during the winter months. These species of birds are either resident birds that stay here all year long or winter visitors that just spend the winter in Ohio before migrating back to Canada for the breeding season. We'll look for these birds and learn about them as we hike around the park's trails. No registration required. Free.