I was particularly desirous to hear the song of the shrike. He is not classed with singing birds, and is not, I think, usually credited with being musical. But Thoreau speaks of his song, and others mention it. John Burroughs tells of a shrike singing in his vicinity in winter, "a crude broken warble,"--"saluting the sun as a robin might have done." Winter, indeed, seems to be his chosen time for singing, and an ornithologist in St. Albans says that in that season he sings by the hour in the streets of the town. [Sidenote: _THE SHRIKE'S SONG._] Therefore did I sit unobtrusively on the near side of the thorn-tree, leaving the birds their screen, to encourage them to sing; and at last I had my reward. One very hot day I did not reach my place under the maple till after nine o'clock, and I found the shrike, as I frequently did, on the fence, on guard. In a few moments, when I had become quiet, he went to the nest, and sitting there on the edge, hidden from my distinct view, he condescended to sing, a low, sweet song, truly musical, though simple in construction, being merely a single clear note followed by a trill several tones higher. After delivering this attractive little aria a dozen or more times, he flew out of the tree and over my head, and sang no more. My curiosity about his song being thus gratified, I decided to seek a better post of observation; for I hoped every day to find that sitting was over, and the young had appeared. I therefore walked farther up the road, quite past the tree, and took my seat beside the fence, where I could see the whole nest perfectly. The birds at once recognized that all hope of concealment was over, and became much more wary. The singer came less frequently, and was received in silence. Also he took me under strict surveillance, perching on a dead branch of the maple-tree, and sitting there half an hour at a time, motionless but wide awake; ready, no doubt, to defend the nest if I made hostile demonstrations toward it.