Do This Now: Songbirds hike, bike races and more

10 a.m.-noon Saturday

Learn the basics of shooting safely and accurately. Shoot at stationary targets and from an elevated platform. Equipment provided. Cost is $7 and reservations are required. Call 763-559-6700 and reference activity 421501-00. This program is designed for women ages 14 and older. (threerivers­parks.org).

9 a.m.-noon Saturday

Learn about songbirds that live along the Mississippi River. Certified banders will catch and release birds. Program is free. Drop in anytime. (threeriversparks.org)

9 a.m.-2 p.m. Sunday

Do you have the endurance and mental fortitude to battle 40 miles of single track? Compete individually or in teams of up to four riders. Each Menacing 40 consists of four 10-mile loops. Cost is $25 for individuals and $50 for teams that preregister. Call 763-559-6700 to preregister. This race is for ages 14 and older. (threeriversparks.org)

Archaeology festival

Tours, archery, games and more, with a focus on the Whitewater River Valley. (1-507-932-3007, mndnr.gov)

Night sky

8-10:30 p.m. Saturday

Join amateur astronomer Kenny Bahmer as he takes you on a tour of the night sky. Meet at the visitor center. Includes indoor and outdoor activities. (651-433-0500, mndnr.gov)

Minnesota mushrooms

Join Ron Spinosa from the Minnesota Mycological Society and learn to identify mushrooms. You'll learn which mushrooms are safe for eating, when and where to find them, and how to prepare them. Freewill donation suggested. (1-763-878-2325, mndnr.gov)

Canoe with a naturalist

4:30-6 p.m. Sunday

Watch for wildlife, learn about water quality, and get a new perspective as the seasons and colors change. Cost is $10 and reservations are required. Call 763-559-6700 and reference activity 437811-27. This program is for ages 10 and older; children 17 years and younger must be accompanied by a registered adult. (threeriversparks.org)

Nordic walking