Sky Silver a Great Blue Heron and Endless Mysteries

Out to the Woods at 10, before the noon-time snow and freezing rain comes. Stepping down the slope from the NW Entrance, the twigs and branches of the Woods are all adorned with silver from the sky. The freezing rain of yesterday, trickled down into inch-long icicles, distilling the essence of the surface of the Woods into frozen drops. Approaching the NW Pond, I disturb a Great Blue Heron and it flies away silently to perch in an old snag. The Woods are nearly still, and nearly silent. The light wind generates some creaking sounds from weighted branches. Two woodpeckers, with bright red heads fly up to perches, their foraging never done, their resources of rich burrowing beetles never exhausted. No deer visible out this morning. Settled into steep, south-facing ravines, sheltered from the north storm wind coming? A Barred Owl flies silently west across Hackberry Alley. Not much sign of the animal life of the Woods. A lone squirrel watches me closely for a moment, then runs up a tree, perches facing me again. Then slowly makes her way back to the ground in short jumps, but silently, frisking her tail at me, as if to challenge me, and shoo me away. She ascends another smaller 3 m elm, crosses to a tangle of grapevines connected to a larger elm and makes her way up. I wonder if the travel of squirrels is opportunistic and random; or if she has known, repeatedly used routes, Interstates connecting different trees and different places. Looks like she is just taking whatever route they can, but I bet she is following well-known routes.
Farther south in the Woods, where there is bare wet frozen soil, 'needle ice' has formed beneath flecks of bark, wood, broken shells of nuts, or small bits of rock. It has lifted and supports these an inch above the soil. I remember these from winter days in the red clay earths of North Carolina. They usually had a curious pronounced smell of wine or sour fruit. I check the ice needles here and there is no smell. I wonder why the ice needles form under small flecks of debris and not everywhere. Brown silty water is slowly draining out through the beaver dam, but low areas through the SW quarter of the Woods are underwater from the half inch rain Tuesday. West of the former Elm Bridge ice covers an irregular pool of water, roughly four feet by two. There are thirty or more contour rings around the ice sheet, resembling growth rings of trees. Why? Maybe as the pool drains and the periphery freezes, water is drawn by capillary action up to the ice; but why rings? Why not smoothly continuous? Always new things to discover and wonder about. Richness everywhere.