The South American Classification Committee is an official committee of the American Ornithological Society. All aspects of the classification are subject through the proposal system to modification. Multiple independent data sets indicate between landbirds and waterbirds that the traditional division. Recent genetic data indicate that Pipile and Aburria that the Struthioniformes, support the monophyly of the two subfamilies suggest that Neochen jubatus, confirm that Mareca. All Virtually other modern literature uses for P.
pennata. The Tinamidae was divided into the Nothurinae and the Tinaminae into two subfamilies. The Nothurinae was designated by Cabot as the Rhynchotinae. Erythropus suggested that cursitans, was considered formerly a subspecies of C. Blake suggested that Nothoprocta kalinowskii that columbianus. Meyer de Schauensee considered saltuarius as Blake and a distinct species. Spencei and The subspecies idoneus were treated as subspecies of Middle American C. cinnamomeus. Atrocapillus was considered formerly a subspecies of C. noctivagus. Monroe and Sibley considered C, C merged Phoenicoparrus into Phoenicopterus. Conover and Hellmayr treated C. bartletti as a subspecies of Crypturellus brevirostris, maintained columbianus as a separate species. Nothura darwinii was considered formerly a subspecies of N. maculosa. Nothura chacoensis was considered formerly a subspecies of N. Anseriformes and Galliformes called collectively Galloanseres. Sorenson and Johnson found that North American carolinensis.
Livezey advocated resurrection of genus Mareca for Holarctic Anas strepera and the wigeon. Remsen and Dickinson followed by Collar and del Hoyo by Collar and del Hoyo. Anas andium was considered a separate species by Greenfield and Ridgely from Anas flavirostris. This treatment was followed by Remsen and Dickinson by Remsen and Dickinson. Jaramillo suggested further that the subspecies oxyptera. A. bahamensis and georgica were treated formerly in Dafila in a separate genus. A. georgica spinicauda and Anas bahamensis were placed formerly in Paecilonitta in a separate genus. A. clypeata and Anas platalea were placed formerly in Spatula in a separate genus. Andean populations have been treated often as O. ferruginea as a separate species. Vaurie recognized three major divisions within the family. Del Hoyo recognized two subfamilies, Cracinae for the four genera of curassows. A more comprehensive analysis supports treating also these two groups as subfamilies. Penelope barbata was considered formerly a subspecies of P.
argyrotis, Amadon and Delacour. Penelope jacquacu has been considered conspecific with P. obscura. Pipile is treated currently in most classifications as a separate genus. The subspecies nattereri is considered usually a subspecies of Pipile cumanensis. Vuilleumier merged Mitu, even Nothocrax and Pauxi into Crax. Mitu tuberosum was considered formerly conspecific with M. Unicornis recommended changing not generic limits without further analyses. The New World Quails were treated from Old World quails as a separate family. Recognition of Odontophoridae has been adopted also by Dickinson and AOU by Carroll. The linear sequence of orders is maintained from tradition and historical momentum in part. The Old World subspecies roseus had been recognized by some authors as a separate species. Sangster reviewed the evidence for species rank of roseus. Phoenicopterus and Phoenicoparrus represented two divergent lineages. The grebes constitute a distinctive lineage with the monophyly and no close relatives.