Walk of the timberdoodle

Afton State Park

8-9 p.m. Friday


“Timberdoodle” is the nickname given to the American woodcock, a ground-nesting, long-beaked, stocky bird. The spring mating dance and flight are unique and amazing. (651-231-6968; mndnr.gov/afton)

Bird-watching walk

Brown’s Creek State Trail

8-9:30 a.m. Saturday


The 5.9-mile former rail trail connects the Gateway State Trail in Grant to the St. Croix National Scenic Riverway. Join a naturalist at the Neal Avenue trailhead for a 2-mile hike through the prairie and forest. Binoculars and field guides are available but limited in number. (651-231-6968; mndnr.gov/gateway)

Signs of spring

Blue Mounds State Park

1-2 p.m. Saturday


Join a naturalist for a mile hike in search of spring. The trail is hilly and may be slippery. (1-507-283-6050; mndnr.gov/bluemounds)

Snake, rattle and roll

Lake Maria State Park

1-2 p.m. Saturday


Emily Roberts from Snake Discovery, an educational program, returns with a large number of reptiles that includes snakes and lizards. Touch and hold 13 live animals. (763-878-2325; mndnr.gov/lakemaria)

Ghost town cemetery

field trip

Whitewater State Park

1-3 p.m. Saturday


Naturalist-led vehicle tour of the Whitewater Valley. See a pioneer cemetery. Participants will use their vehicles. Meet at the visitor center. (1-507-312-2300; mndnr.gov/whitewater)

Bird banding

9 a.m.-noon Saturday

Eastman Nature Center


Wild songbirds will be carefully trapped, studied, banded and released. This program is free and open to all ages. (763-694-7700, threeriversparks.org)

Landscape photography

9:30-noon Saturday

Minnesota Valley National Wildlife Refuge


Learn techniques and tips from photographer Don Tredinnick, and then head out to use the new knowledge. Meet at the auditorium at the visitor center in Bloomington. (952-854-5900, bit.ly/ mnfwsOW)

Search for spring

Eastman Nature Center

1-2:30 p.m. Sunday


Walk through the woods looking for wildflowers, migrating birds and other spring signs. (763-694-7700, bit.ly/walkOW)

Learn to use iNaturalist

Minnesota Valley National Wildlife Refuge

10 a.m. Saturday


Staff biologist Nicole Menard will teach how to use the iNaturalist app to record observations outdoors. Then, get ready to use iNaturalist to collect plant and animal observations on the refuge and throughout the metro April 26-29 during the international City Nature Challenge. Questions? Contact Menard at Nicole_Menard@fws.gov or 952-858-0716. (bit.ly/mnfwsOW)