Help wildlife celebrate the 150th birthday of Fort Collins. Families are invited to take part in traditional birthday games with a wildlife twist, like pin the tail on the bobcat and Tic Track Toe. All activities are in the barn and shelter area near the parking lot. Arrive anytime between 10 a.m. and 2 p.m. to participate. An optional 2-mile, round-trip hike to the pioneer cabin begins at 10:30 a.m. and includes pioneer activities at the cabin. Hike participants should bring along a sack lunch, water to drink, and a jacket. Free. No registration required but you can get a reminder and updates by signing up at NatureTracker.fcgov.com.