introduction - Pennsylvania Natural Heritage Program

forest cover removal operations in the upper watershed be small-scale and conducted with appropriateerosion control precautions. Mining and other bedrock disturbances should not be conducted in theimmediate watershed of the seepage wetlands.Shagger’s Inn ImpoundmentDescriptionThis BDA is designated because the Shagger’s Inn shallow water impoundment is used as a nest siteby a pair of Osprey. The Osprey is a large, fish-eating bird that declined greatly in the 1960s and1970s because the ubiquitously released pesticide DDT inhibited its ability to reproduce. Since thebanning of this compound the species has rebounded considerably. However, its population is stilllow in many areas across its range, and it is tracked as a species of special concern in Pennsylvania.The mapped area is core habitat.Threats and StressesDisturbances in the area during breeding season may impair the birds’ breeding success.RecommendationsLoud noises and other disturbances should be minimized during the months of March-June.CLEARFIELD BOROUGHThe landscape of Clearfield Borough is occupied mainly by the city of Clearfield and contains littlenatural cover. It is within the watershed of the West Branch Susquehanna River, which flows through thecity. No Natural Heritage Areas were identified within the bounds of the borough.118