This bird when foraging for food it circles the tree in an upward direction, as if it were ascending a spiral staircase, or it takes a straighter path up , then drops to the base of a nearby tree and starts working its way up again.--Often escapes predators by pressing its body tightly against tree, spreading wings and tail , and remaining motionless.--At times I get lucky and see him out in our woods, in the Winter months he comes closer to our log cabin.