As I groped and grumbled in this lowly position, suddenly I heard the prelude to one of the most beautiful of winter dawn-songs. It was a liquid loud note full of rolling _r's_. Perhaps it can be best represented in print somewhat as follows: "Chip'r'r'r'r." I forgot my lost glasses and my cold hands and my wet knees waiting for the song that I knew was coming. Another preliminary, rolling note or so, and there sounded from a low stump a wild, ringing song that could be heard for half a mile. "Wheedle-wheedle-wheedle," it began full of liquid bell-like overtones. Then the singer added another syllable to his strain and sang, "Whee-udel, whee-udel, whee-udel." Three times, with a short rest between, he sang the full double strain through, although it was so dark that only the ghostly, black tree-trunks could be seen against the white snow. I needed no sight of him, however, to recognize the singer. The song took me back to a bitter winter day in Philadelphia some seventeen years ago, when I was laboriously learning the birds. I was walking through a bit of waste-land encircled by trolley-tracks when I heard this same song. It was like nothing which I had ever heard in New England, where I had learned what little I knew about birds, and I searched everywhere for the singer, expecting to see a bird about the size of a robin. 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.