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Can you tell what critters have been walking around your house by the tracks that they leave? Join one of our amazing naturalists on Saturday, February 4th at 1 pm for an afternoon of tracking mammals during a snowy walk on our beautiful trails at Grass River Natural Area. You never know what we may find – are those tracks a porcupine, mink, hare, or squirrel? Learn some tips for identifying tracks this winter. Free one hour walk, but donations appreciated. For more information visit http://www.grassriver.org/classes-and-programs.html