A correspondent, writing to me from the country one September, says, "I have observed recently a new species of bird here. They alight upon the buildings and fences as well as upon the ground. They are _walkers_." In a few days he obtained one, and sent me the skin. It proved to be what I had anticipated, namely, the American pipit, or titlark, a slender brown bird, about the size of the sparrow, which passes through the States in the fall and spring, to and from its breeding haunts in the far North. They generally appear by twos and threes, or in small loose flocks, searching for food on banks and plowed ground. As they fly up, they show two or three white quills in the tail like the vesper-sparrow. Flying over, they utter a single chirp or cry every few rods. They breed in the bleak, moss-covered rocks of Labrador. Their eggs have also been found in Vermont, and I feel quite certain that I saw this bird in the Adirondac Mountains in the month of August. The male launches into the air, and gives forth a brief but melodious song, after the manner of all larks. They are _walkers_. This is a characteristic of but few of our land-birds. By far the greater number are _hoppers_. Note the track of the common snow-bird; the feet are not placed one in front of the other, as in the track of the crow or partridge, but side and side. The sparrows, thrushes, warblers, woodpeckers, buntings, etc., are all hoppers. On the other hand, all aquatic or semi-aquatic birds are walkers. The plovers and sandpipers and snipes run rapidly. Among the land-birds, the grouse, pigeons, quails, larks, and various blackbirds, walk. The swallows walk, also, whenever they use their feet at all, but very awkwardly. The larks walk with ease and grace. Note the meadow-lark strutting about all day in the meadows. Besides being walkers, the larks, or birds allied to the larks, all sing upon the wing, usually poised or circling in the air, with a hovering, tremulous flight. The meadow-lark occasionally does this in the early part of the season. At such times its long-drawn note or whistle becomes a rich, amorous warble. The bobolink, also, has both characteristics, and, notwithstanding the difference of form and build, etc., is very suggestive of the English skylark, as it figures in the books, and is, no doubt, fully its equal as a songster.