Jennings Environmental Education Center, Route 528, Brady Township, will provide an indoor observation station for the annual Butler County Christmas Bird Count from 10 a.m. to noon Saturday. A First Day Hike will be from 1 to 3:30 p.m. Jan. 1. Call 724-794-6011. Jennings is open from 8 a.m. to 4 p.m. weekdays and on weekends as scheduled. The trails are open daily from sunrise to sunset. Call 724-794-6011.