Wildlife Conservation Day • free
All ages learn about wildlife conservation and have fun at Patuxent Research Refuge, exploring habitats, fishing, shooting bows and arrows, making crafts and seeing firearm demonstrations. 10am-2pm at Patuxent Research Refuge at the National Wildlife Visitors Center Patuxent North Tract, off of Rt. 198 (1.4 miles east of Baltimore Washington Pkwy.): 301-497-5770; www.fws.gov/refuge/Patuxent.