COUNTY

Succop Nature Park, 185 W. Airport Road, Penn Township, will host 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, is hosting an Audubon Photo Exhibit through April 24. “Spring Wonder Walk” will be April 19 and “Take Back the Woods; Battling Invasive Species” April 20. Call 724-794-6011

Moraine State Park will host an easy 1.5 mile “Winter Weeds Walk” at 1 p.m. Saturday from the South Shore Park office. Earth Day Spring Cleanup Day is planned for 1 to 4 p.m. April 20; register at 724-368-8811.

REGION

A Star Party, sponsored by the Amateur Astronomers Association of Pittsburgh, will begin about 8 p.m. Saturday, weather permitting, at the Nicholas E. Wagman Observatory in Deer Lakes Regional Park, near the village of Russellton, Frazer Township, Allegheny County. Call 724-224-2510.