From time immemorial, observers have found poetry—and poetic prose—in nature. Whatever form your observations have taken, we’ll have plenty to observe and record as we greet the morning and hike Avalonia Land Conservancy’s Tefftweald at Birchenturn Preserve in North Stonington. Tefftweald, a former Girl Scout camp, is a 77-acre masterpiece of upland forest, meadows, wetlands,…