New World sparrow

New World sparrows are a group of mainly New World passerine birds, forming the family Passerellidae. They are seed-eating birds with conical bills, brown or gray in color, and many species have distinctive head patterns.
Although they share the name sparrow, New World sparrows are more closely related to Old World buntings than they are to the Old World sparrows (family Passeridae). New World sparrows are also similar in both appearance and habit to finches, with which they sometimes used to be classified.
Taxonomy.
The genera now assigned to the family Passerellidae were previously included with the buntings in the family Emberizidae. A phylogenetic analysis of nuclear and mitochondrial DNA sequences published in 2015 found that the Passerellidae formed a monophyletic group that had an uncertain relationship to the Emberizidae. Emberizidae was therefore split and the family Passerellidae resurrected. It had originally been introduced, as the subfamily Passerellinae, by the German ornithologist Jean Cabanis in 1851.
The International Ornithological Congress (IOC) recognizes these 138 species in the family, distributed among 29 genera in the following sequence. One extinct species, the Bermuda towhee, is included. The North American and South American classification committees of the American Ornithological Society (AOS) do not recognize all of these species and use some different common names.
Genus "Oreothraupis"
Genus "Chlorospingus"
Genus "Rhynchospiza"
Genus "Peucaea"
Genus "Ammodramus"
Genus "Arremonops"
Genus "Amphispiza"
Genus "Chondestes"
Genus "Calamospiza"
Genus "Spizella"
Genus "Arremon"
Genus "Passerella"
Genus "Spizelloides"
Genus "Junco"
Genus "Zonotrichia"
Genus "Artemisiospiza"
Genus "Oriturus"
Genus "Pooecetes"
Genus "Ammospiza"
Genus "Centronyx"
Genus "Passerculus"
Genus "Xenospiza"
Genus "Melospiza"
Genus "Pezopetes"
Genus "Torreornis"
Genus "Melozone"
Genus "Aimophila"
Genus "Pipilo"
Genus "Atlapetes"