I have said that these birds are scarcely known east of the Mississippi River, but Mr. Ridgway says that they are occasionally seen during migration in Illinois and Wisconsin. In eastern Kansas and western Missouri they are common, almost abundant, during both the vernal and autumnal migrations, and after you have once cultivated their acquaintance they are likable, if not quite companionable, birds. But familiar as they are in the regions named, they are still something of a mystery to the naturalists of our country, for Mr. Ridgway says that their "breeding range is unknown," save that there is a doubtful record of one nest at Fort Custer, Montana; while Mrs. Bailey says: "The breeding range of the Harris sparrow is unknown except for Mr. Preble's Fort Churchill record. The last of July, among the dwarf spruces of Fort Churchill, he found an adult male and female with young just from the nest." It will be remembered that Fort Churchill is away up on the coast of the Hudson Bay. It is probable, therefore, that the nest of the Harris sparrow has never been found by any of the naturalists of America. Who would suppose that these birds, so numerous and so well known in Kansas, would, in the breeding season, surround themselves with such an air of mystery? It was in Kansas, too, that I really came to know the Lincoln sparrow and hear his song, although I had caught a few fleeting glimpses of him in the East, and also in the neighborhood of Duluth, Minnesota. In the Sunflower state his conduct was just about as inconsistent as it could have been without being downright absurd. What do I mean by that? Why, while he was as wild as a deer, he still came to town, flitting about in the bushes of a vacant lot near my house, and even visiting the fence between my yard and the adjoining one, hopping about on the ground with one eye on the lookout for nits and worms and the other for human disturbers. My attention was first drawn to him by hearing a squeaky little trill in the vacant lot. But, my! how wary he was when I went out to find him! The song bore some resemblance to that of the house wren, but had not so rolling and gurgling a quality, and was pitched to a slightly higher and finer key. For a long time he kept himself ensconced in the thicket, trilling saucily at intervals, as if daring me to find him if I could, and when I finally drove him out of his hiding place, he darted off in a zigzag course to another bush clump, into which he dropped in the greatest possible haste.