Walks by moon, walks for birds are part of Minnesota parks lineups

Blue Mounds State Park

1-2 p.m. Friday

In a program geared toward children, learn the anatomy of a bison and what makes this animal perfectly suited for prairie life. (1-507-283-6050; mndnr.gov/bluemounds)

Sibley State Park

9-10 p.m. Friday

Join a naturalist for a .7-mile walk on a dirt trail as part of the new moon hikes that occur every month this year at Sibley. The park is celebrating its 100th birthday this year. (1-320-354-2002; mndnr.gov/sibley)

Glacial Lakes State Park

Come for the 2 p.m. egg hunt, stay for the activities and treats. Last year 3,000 eggs were hidden. (1-320-239-2860, mndnr.gov/glaciallakes)

Lake Bemidji State Park

10-11:30 a.m. Saturday

Meet at the park office for the 1.25-mile walk on the Rocky Point loop trail. Learn the difference between basswood, oak, maple, birch, and white and red pine. Celebrate Arbor Day (April 26) early. Dress for the weather and wear good hiking footwear. (1-218-308-2300; mndnr.gov/lakebemidji)

William O'Brien State Park

Meet at the Lake Alice swimming beach for a 60-minute stroll in search of birds. Later, learn online tools at the visitor center. The program is designed for novice to intermediate birders. Some binoculars and field guides are available, but participants are encouraged to bring their own. (651-433-0500, ext. 227; mndnr.gov/obrien)

Lowry Nature Center

2-4 p.m. Sunday