Welcome to the Pennsylvania Society for Ornithology – a group of birders from across the commonwealth devoted to birding and wild bird conservation.

Our members range from neophyte birders to professional ornithologists.

All are welcome! 



New webinar:

PSO Educational Series: John Heinz National Wildlife Refuge at TinicumPSO Educational Series:

Monday, November 21, 2022 @ 7:00 pm - 8:00 pm

Join us online to learn what makes a birding trip to the John Heinz National Wildlife Refuge at Tinicum such a memorable experience!

Celebrated as America's First Urban Refuge, Biologist Garrett White will detail the biology program at the refuge, highlighting current habitat restoration initiatives, ongoing research projects, and ways you can help.
The webinar is free, but registration is required in advance. To register, please visit:


5 PSO Webinar White 


PSO Webinars now available at


 County Spotlight

The PSO is highlighting counties across the state to explore its hotspots and find as many birds as we can.

On March 17-20, 2023, join us as we lead a concentrated effort to bird Columbia County!