Finally, in the underbrush just ahead of me, I saw an unmistakable wren singing so ecstatically that he shook and trembled all over with the outpouring of his song. It was my first sight and hearing of this southern bird, the Carolina wren, the largest of our five wrens, whose field-mark is a long white line over the eye. He is reddish-brown, while the house wren, which is half an inch shorter, is cinnamon-brown. The long-billed marsh wren also has a white line over the eye and is about the same size, but is never found away from the tall grass bordering on water, and has no such song as the Carolina. The winter wren and the short-billed marsh wren could neither of them be mistaken for the Carolina, as both are about an inch and a half shorter and lack the white line. The house wren and the long-billed marsh wren bubble when they sing, the Carolina wren and the winter wren ring, and the short-billed marsh wren, the rarest of all, clicks. Of them all only the Carolina wren sings in the winter.
That day the wren-song brought me good luck. It was no more than finished when I heard someone passing along a nearby wood-road, who turned out to be an early-rising workman from whom I borrowed some matches with which I finally discovered my missing eyes half buried in the snow. I attacked the pignut hickory with great energy to make up for lost time. Little by little the axe bit through the tough wood, until the kerf was well past the heart of the tree. As I chopped I could hear the quick strokes of a far better wood-cutter than I shall ever be. Suddenly he gave a loud, rattling call, and I recognized the hairy woodpecker. He is much larger than the downy, being nearly the size of a robin, while his call is wilder and louder and lacks the downward run of the downy's note. We chopped on together, he at his tree and I at mine. Suddenly from my tree sounded a warning crack, and the trunk wavered for a moment. I stepped well off to one side, for it is dangerous to stand behind a falling tree. If it strikes anything as it falls the trunk may shoot backward. A venerable ancestor of mine, so the story runs, tried to celebrate his ninetieth birthday by chopping down a tree, and standing behind it, was killed by the back-lash of the falling trunk.