Otidae[1] is a clade that includes the superorders Otidimorphae (bustards, turacos, and cuckoos) and Strisores (nightbirds, swifts, and hummingbirds). It was identified in 2014 by genome analysis.[2] Earlier it was thought that Strisores was closely related to birds such as pigeons, flamingos, tropicbirds, and the sunbittern and kagu in the taxon Metaves,[3][4] but subsequent work has provided evidence that Metaves is polyphyletic.[2][5][6] Although analyses of genome data provided relatively high support for monophyly of Otidae, indicating that it occupies a basal branch of the clade Passerea,[2] other analyses of large data matrices[5][6][7] have not recovered a clade comprising Otidimorphae and Strisores, raising questions about the monophyly of Otidae.