Fall walks, birding and more at state and regional parks

Wild River State Park

10-11:30 a.m. Saturday

• Register starting at 8:30 a.m. for the park's Otter Trotter 5-kilometer run or walk. The event begins at 10 a.m. (651-583-2125; mndnr.gov/wildriver)

Jay Cooke State Park

1-2:30 p.m. Saturday

• Easy one-mile walk through changing colors. Meet at the interpretive center. (1-218-673-7005; mndnr.gov/jaycooke)

Mille Lacs Kathio State Park

• Learn the life cycle of the gray wolf during a program which includes a nature film. Meet in interpretive center. (1-320-532-3269; mndnr.gov/millelacs)

Interstate State Park

Noon-1 p.m. Sunday

• Walk rocky terrain to see the bottomless pit, river views, and the route of lava flow. (651-465-5711; mndnr.gov/interstate)

Blue Mounds State Park

• Take the 90-minute tour with the hope of seeing the elusive bison. Buy tickets in advance. The tour also picks up at 11 a.m. and 2 p.m. (1-507-283-6050; mndnr.gov/ bluemounds)

3-4 p.m. Sunday

Lowry Nature Center

• Learn about migratory waterfowl traveling through Carver Park and the best locations to spot them. Look for wigeon, gadwall, green-winged teal, scaup, buffleheads and more. Scopes and binoculars provided. The program is free. Must be 11 or older. (763-694-7650, threeriversparks.org)

6:30-8 p.m. Sunday

• Uncover the secrets of the natural world on a hike under the magic of the full moon. Dress for the weather and for walking on uneven terrain. Cost is $5. Similar programs also are scheduled at Eastman and Lowry nature centers. (763-694-7676, threeriversparks.org)

Crow-Hassan Park Reserve

10:30 a.m.-1:30 p.m. Tuesday,