Turnix suscitator (Gray 1840) is the extant buttonquail. This quail-mimic and traditional plover (based on genomic testing) nests instad with basal pigeons like Pterocles in the LRT. The postfrontal and postorbital are absent. The squamosal does not extend lateral to the quadrate.

Small, drab, running birds that avoid flying, buttonquail were traditionally placed in Gruiformes or Galliformes (the crane and pheasant orders).

Pterocles exustus (Temminck 1825) is the extant chestnut-bellied sandgrouse. This vegetarian prefers bushy, arid lands. It nests close to pigeons.

Columba livia (Gmelin 1789; 28 cm tall) is the rock dove or rock pigeon. All pigeons are members of the Columbiformes. In an invalid DNA test by Prum et al. 2015 Columba nests with the cuckoo, Coccoyzus.

Gmelin JF 1789. Caroli a Linné ... Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, Cum Characteribus, Differentiis, Synonymis, Locis. Editio Decima Tertia, Aucta, Reformata/ cura Jo. Frid. Gmelin. Volume 1, part 3. Lipsiae: Impensis Georg. Emanuel. Beer.

Gray GR 1840. List of Gen. B:59

LeMaout JEM 1853. Les trois regnes de la nature. Regne animal. Histoire naturalle des oiseaux, suivant la classification de M. Isidore Geoffroy-Saint-Hillaire, avec l'indication de leurs moeurs et de leurs rapports avec les arts, le commerce et l'agriculture. Par Emm. Le Maout. L. Curmer. Paris 425 pp.

Pallas PS 1764. Adumbratiunculae avium variorum praecedenti Elencho inserlarum, sed quae in Systemate Naturae Illustr. Linnaei nondum extant. Pp. 1-7 in Vosmaer 1764.

Timminck CJ 1825. Atlas des oiseaux d'Europe, pour servir de complément au Manuel d'ornithologie de M. Temminck. Belin, Paris 1826–42.

Vieillot LJP 1809. Histoire naturelle des oiseaux de l'Amérique Septentrionale

wiki/Columba
wiki/Pterocles
wiki/Buttonquail