RheidaeApterygidaeTinamidaeGalliformesAnhimidaeAnatidaePodicipedidaePhoenicopteridaeThreskiornithidaeCariamidaeStrigiformesRecurvirostridaeBurhinidaeAccipitridaeFalconidaeSagittariidaeCathartidaeGaviidaeSpheniscidaePhaethontidaeFregatidaePhalacrocoracidaeBalaenicipitidaeEurypygidaeArdeidaeCiconiidaeProcellariidaeOtididaePteroclidaeColumbidaeRallidaePsophiidaeGruidaeSteatornithidaePsittacidaeColiidaeTrogonidaeAegothelidaeCoraciidaePasseriformesNamibiavisHoazinavisMusophagidaeCuculidaeOpisthocomidaeForoOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Field_et_Hsiang_2018a