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The 1,025-acre Boyd Big Tree Preserve Conservation Area is one of the newest Pennsylvania state parks. The park straddles Blue Mountain and is the habitat of large trees of numerous species, which are homes for deep forests birds, especially warblers. In the summer and fall, the old field is filled with blooming wildflowers like butterfly weed. In late-July and early-August, the flowers attract field birds and many varieties of butterflies.
The conservation area’s many trails offer good opportunities for seeing white-tailed deer, wild turkeys, squirrels, grouse, black bears and a variety of songbirds depending on the season. Eastern bluebird boxes are around the main parking lot. The field and the ridge top of the conservation area can be great places to watch the annual hawk migration as these magnificent birds of prey ride the thermals along Blue Mountain. Their migration begins in mid-October and runs through early December with the peak in early November. American Chestnuts were planted in the field near the entrance as part of a program to create blight resistant trees.