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Succop Nature Park, 185 W. Airport Road, Penn Township, has Birds and More nature walks at 9 a.m. Thursdays. Call 412-963-6100 or visit www.aswp.org.

Jennings Environmental Education Center, Route 528, Brady Township, will be the site of a Take Back the Woods: Battling Invasive Species from 9 a.m. to 1 p.m. April 21. Registration is required at events.dcnr.pa.gov or by calling 724-794-6011.

Moraine State Park, Muddy Creek Township will be the site of “The Making of Moraine Frank Preston — the Man, the Moment, and the Mission” at 1 p.m. Tuesday in the State Parks Region 2 Office Conference Room, 195 Park Road. Call 724-368-8811.