John Heinz National Wildlife Refuge at Tinicum Location 8601 Lindbergh Blvd.PhiladelphiaPA19153 Next Event Summer Bird Walk at John Heinz National Wildlife Refuge in Philadelphia - July 12, 2026 - 8:00 am - 11:00 am Upcoming Events Summer Bird Walk at John Heinz National Wildlife Refuge in Philadelphia - July 12, 2026 - 8:00 am - 11:00 amSummer Bird Walk at John Heinz National Wildlife Refuge in Philadelphia - August 9, 2026 - 8:00 am - 11:00 am
