 The Canada warbler and northern waterthrush nest in the bogs, as do the alder flycatcher, common yellowthroat, swamp sparrow, red-winged blackbird, and gray catbird.The olive-sided flycatcher, which is designated as locally extinct in Pennsylvania, has been seen during the breeding season at Black Moshannon State Natural Area.Bird watchers have observed nesting barred owls in the IBA, as well as Virginia rail and sora.