For ages 4–6. Exploratory walkabouts in the park to search for birds & watch their behavior. Hands-on learning, nature-based games & unique crafts to take home. $10–$12 per family (up to 4 people). Parking: $7. 10 a.m.–noon. Helen Putnam Regional Park. 411 Chileno Valley Rd., Petaluma. Registration required: tinyurl.com/2p9k2vrd.