Jennings Environmental Education Center will conduct a Prairie Improvement Day from 9 a.m. to 1 p.m. Saturday at the park. Participants must be 12 or older and be registered for the program. A Winter Mountain Adventure is planned for Jan. 23 to 25. Call 724-794-6011 for details on the adventure to Laurel Ridge, Ohiopyle State Park and Seven Springs Resort for assorted activities. Jennings is regularly open from 8 a.m. to 4 p.m. weekdays and on weekends as scheduled. The trails are open daily from sunrise to sunset.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 to confirm programs.

<B>McKeever Environmental Learning Center</B>, 55 McKeever Lane, Sandy Lake, will be the site of "Birds at Your Feeder" from 8 to 11 a.m. Saturday. Admission is free. Call 724-376-1000 or visit www.mckeever.org.<B>Crooked Creek Environmental Learning Center</B>, 142 Kerr Road, Ford City, will be the site of the Crooked Creek Watershed Association's annual Winter Wonderland Walk at 2 p.m. Jan. 25. Call 724-763-6316 or visit the Web site, www.crookedcreekelc.org.