Tri-State Music Festival Concert: Saturday, Feb. 28, 2 p.m.; Mary D'Angelo Performing Arts Center, Mercyhurst University; high school band musicians from Erie County and surrounding areas perform. Cost: Free. Info: 824-2394.
CROSS COUNTRY SKI INTRODUCTION: Saturday, Feb. 28, noon, 1:15 and 2:15 p.m.; Erie Bluffs State Park, Route 5, Girard Township; introduction to proper skiing technique and 2-mile ski. Cost: Free, but registration required. Info: 833-7424.
MIMICRY: Saturday, Feb. 28, 7-8:30 p.m.; Tom Ridge Environmental Center, 301 Peninsula Drive; learn about a field of study that involves taking inspiration from natural designs to solve human problems. Cost: $3; registration recommended. Info: 833-7424.