Trees hold mysteries even when not hiding behind their foliage. Celebrate the beginning of stick season, where trees have lost their leaves and appear to be huge sticks in the ground. Discover the beauty of individual species’ barks, the distinct shapes they form without us even knowing and the nests and cavities they created and protected earlier in the year. Find your own joy in the season of the sticks! All ages. Registration required by Friday, Dec. 20: 815-722-9470.