Editor’s Note: Listings in Trail Mix are free. Email: outdoor@recorder.com. The deadline is Thursday by noon. Questions? Call 413-772-0261, ext. 276. Weather may cancel or force the rescheduling of some of these events.

Great Falls Discovery Center

Kidleidoscope Fridays: 10:30 to 11:30 a.m. Come each week to learn about our wildlife neighbors who share our home in the Connecticut River Watershed. Kidleidoscope is a free child-friendly, hands-on environmental experience for young children. Each topic includes a story, interactive activities and a craft to introduce you and your child to the natural world. Upcoming topics include winter bugs on Jan. 18 and “Who lives in a tree?” on Jan. 25. For ages 3 to 6. For more information, call 413-863-3221.

Animal Homes in Winter: Saturday, Jan. 19, 1 to 2 p.m. Investigate the secret hidden animal homes of the season through stories, crafts and activities. For ages 3 to 6. Activities may be outside depending on the weather.

“Who’s Been Here?”: Saturday, Jan. 26, 1 to 2 p.m. Investigate the mysterious signs that wildlife leave behind through stories, crafts and exploring outside. For ages 3 to 6.

Northfield Mountain

“A Murder of Crows”: Tuesday, Jan. 8, 5:30 to 6:30 p.m. Join Patti Steinman, education coordinator for Mass Audubon’s Connecticut River Valley Sanctuaries, for an illustrated presentation focusing on crows and their relatives. Learn about crows’ natural history, their unique intelligence and fascinating roosting behavior where they can congregate by the thousands. Free. Call 800-859-2960 with questions.

Wolf Moon Snowshoe Adventure: Saturday, Jan. 19, 6 to 8:30 p.m. Join other nighttime adventurers for a snowshoe hike under January’s full moon, called the Wolf Moon or Snow Moon. Natural history of the night, quotes and moon lore will be shared during this 2-mile hike. Ends with a hot drink and snacks by the wood stove. Wear wind pants or gaiters if you have them, dress in warm layers that can be easily shed and bring a water bottle. Warm, waterproof footwear is essential. All levels of experience are welcome for this moderately strenuous hike. Suitable for adults and teens ages 13 and up. Free with your own snowshoes and $16 with snowshoe rental. Advance registration is required by calling 800-859-2960.

Winter Wildlife Tracking with Dave Brown: Wednesday, Jan. 23, 7 to 8:30 p.m. Join author and expert tracker Dave Brown, for an illustrated presentation on wildlife tracking in winter. Learn about the tracks, trails and signs of mammals and birds found in New England. Many species will be discussed including bears, bobcats, foxes and coyotes. Suitable for adults and teens ages 13 and up. Free.

Dawndale Farm Wildlife

Becoming a Wildlife Rehabilitator: Two seminars consisting of two consecutive Saturday sessions, from 8 a.m. to 4 p.m. each day. Seminar 1 is on Jan. 19 and Jan. 26; Seminar 2 is on Feb. 2 and Feb. 9. Learn how to be a wildlife rehabilitator and what you need to know to pass the state exam to get your permit. The seminar, which costs $180, will be held at Tufts Wildlife Clinic, 50 Willard St. in North Grafton. Register online via Dawndale Farm Wildlife’s Facebook page, or call 413-834-5733 for more information.

Wendell State Forest

All Out Adventures: Jan. 12, 19 and 26, and Feb. 2, 9, 16 and 23, 11 a.m. to 3 p.m. each day. Enjoy outdoor ice skating, gentle sled hockey, cross-country skiing, sit-skiing, snowshoeing, kicksledding and snowmobile rides, as weather conditions permit. Bring a lunch. Free, but advance registration is required by calling 413-577-3840 or emailing jackie.brown@mass.gov.

Hitchcock Center for the Environment

Homeschool Discovery Days: 10 a.m. to 2 p.m. on one Tuesday each month. Explore science and nature topics with Katie Koerten and Jeff Mazur, meet science experts and sometimes go on field trips. Upcoming topics include Animal tracks and signs on Jan. 15, ecoquest on Feb. 5, the life of a tree on March 5, composting with worms on April 2, mountains and valleys on May 7, and life in a pond on June 11. Designed as a drop-off program for children ages 6 to 12. Limited to 12 participants per program. Register at bit.ly/2ECwLQF. $45 to $55.

Winter Preschool Days: 9:30 to 11:30 a.m. on Jan. 11, Jan. 25 and Feb. 15. Topics are animals getting ready for winter on Jan. 11, signs of animals on Jan. 25, and ice and snow on Feb. 15. Come prepared for winter outdoor exploration. Register at bit.ly/2ECwLQF. $20 to $25, or $55 to $70 for all three sessions.