Mass Audubon will hold a Winter Berry Walk at Great Neck Nov. 21.

The walk will take place from 9 a.m. – 11 a.m., and will focus on looking for colorful berries and other winter food sources. Participants will also look for tracks, scat, and other evidence of wildlife.

Participants are asked to dress for an outdoor, winter walk and bring a light pack with water bottle and light snack. Registration is preferred. Register online or call 508-636-2437 to register by phone.