Maps showing Distribution of Purple Martin Colony Sites in SW Pennsylvania

SW PA Sites - Overall Map (below)
Southern Butler Co., Southern Armstrong Co., Northern Allegheny Co., Northern Westmoreland Co. Sites
Colony Sites in the Moraine State Park Area (Lake Arthur) in Westcentral Butler County
Southern Allegheny Co, Southern Westmoreland Co., and Points South
Armstrong Co., PA sites

RED flags indicate active colony sites.  YELLOW flags indicate sites where the PMPA is attempting to attract Purple Martins. DARK BLUE flags indicate colony sites colony sites that have become inactive (lost) within the past 10 years.  GREEN flags indicate unsuccessful breeding attempts by one or more pair within the past 10 years. LIGHT BLUE flags indicate single pair successful breeding attempts within the past 10 years that did not result in colony establishment.