The waning sun casts October skies with their own shade of blue. I suppose if I spent all my time outdoors, I could tell what week of the year it was just by the hue of the sky or the angle of the tree shadows. It’s said that many animals are sensitive to the length of daylight. For example, hens supposedly need fourteen hours of daylight to lay eggs. But maybe, it’s not the length of day but the color of the sky that they respond to.