COUNTY

Jennings Environmental Education Center, Route 528, Brady Township, will present “Citizen Science is for the Birds” at 2 p.m. Sunday. This free program will introduce various bird-related projects in which anyone can participate, ranging in time and commitment from one day to a whole year. “Homeschool CSI: BirdSleuth/Project FeederWatch” will be Tuesday, and registration is due by Friday at http://events.dcnr.pa.gov/ or 724-794-6011.

REGION

Mid-Autumn star party sponsored by the Amateur Astronomers Association of Pittsburgh is to begin, weather permitting, about 6:15 p.m. Saturday at the Nicholas E. Wagman Observatory in Deer Lakes Regional Park near Russellton. Call 724-224-2510.