Birding at John Heinz NWR at Tinicum – Featuring a Yellow-Rumped Warbler (10/22/23)
We birded from the parking lot near the Visitor’s Center to the Observation Tower and back (along the north part of the main trail). There were at least 100 tree swallows flying over the impoundment. A small group of rough-winged swallows landed in a tree …