“Although of the insect-eating fraternity of the conical beak, the Indigo Bunting consumes many noxious insects in the nesting season, when the rapid growth of the young demands animal food, no matter to what race they belong. Being an inhabitant of the overgrown edges of old pastures, or the brushy fences of clearings and pent roads, he is in a position where he can do a great deal of good. Mr. Forbush, in his valuable book on _Useful Birds and Their Protection_, credits the Indigo Bunting with being a consumer of the larvæ of the mischievous brown-tail moth; but whatever service it may do as an insect destroyer, its service the year through as a consumer of weed seeds, in common with the rest of its tribe, is beyond dispute. “The voice of the Indigo Bunting is pretty rather than impressive, and varies much in individuals. It consists of a series of hurried, canary-like notes repeated constantly and rising in key, but, to my mind, never reaching the dignity of being called impressive song. “Nuttall, one of the early American Wise Men, writes that, though usually shy, the Indigo-bird, during the season, is more frequently seen near habitations than in remote thickets: ‘Their favourite resort is the garden, where, from the topmost branch of some tall tree that commands the whole wide landscape, the male regularly pours out his lively chant and continues it for a considerable length of time. Nor is this song confined to the cool and animating dawn of morning, but it is renewed, and still more vigorous, during the noonday heat of summer. This lively strain is composed of a repetition of short notes, which, commencing loud and rapid, and then slowly falling, descend almost to a whisper, succeeded by a silence of almost half a minute, when the song is again continued as before. “‘In the village of Cambridge (Massachusetts), I have seen one of these azure, almost celestial musicians, regularly chant to the inmates of a tall dwelling-house from the summit of the chimney or the tall fork of the lightning-rod. I have also heard a Canary repeat and imitate the low lisping trill of the Indigo-bird, whose warble, indeed, often resembles that of this species.’ “This combination of musical ability, lovely plumage, and its seed-eating qualities long since has made the Indigo Bunting in danger of extermination, through the fact of its being universally, throughout the South, captured and sold as a cage-bird, both for home use and for export. In that section the bird is called the ‘blue pop,’ a corruption of ‘bleu pape,’ or ‘pope,’ of the French.