Selected study species of Old World sparrows, Passeridae; A) white-winged snowfinch, Montifringilla nivalis (photo: DL, Gobi Altai, Mongolia); B) rock sparrow, Petronia petronia, at nesting hole (photo: MP, China Qinghai); C) house sparrow, Passer domesticus (photo: MP, Greece, Santorini); D) Iago sparrow, Passer iagoensis; (photo: SH, Cape Verde Islands).

  Part of: Päckert M, Hering J, Belkacem AA, Sun Y-H, Hille S, Lkhagvasuren D, Islam S, Martens J (2021) A revised multilocus phylogeny of Old World sparrows (Aves: Passeridae). Vertebrate Zoology 71: 353-366.