Neornithes Gadow, 1893 - living birds Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900 Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988 Order [Columbiformes] Latham, 1790 - pigeons and allies Family Pteroclididae - sandgrouse see Family Pteroclidae Bonaparte, 1831 Genus Syrrhaptes Illiger, 1811 1 Syrrhaptes tibetanus Gould, 1850 - Tibetan sandgrouse 2 Syrrhaptes paradoxus (Pallas, 1773) - Pallas's sandgrouse