| Ostriches | | Rheas | | Kiwis | | Cassowaries | | Tinamous | | Waterfowl | | Landfowl | | | Megapodes | | | Chachalacas, Curassows, Guans | | | Guineafowls | | | New World Quails | | | Turkeys | | | Grouse | | | Partridges, Quail, Francolins | | | Junglefowl | | | Pheasants | | | Peafowls, Peacock-pheasants | | Nightjars | | Oilbird | | Frogmouths | | Owlet-nightjars | | Treeswifts, Swifts, Hummingbirds | | Turacos | | Bustards | | Cuckoos | | Mesites | | Sandgrouse | | Doves, Pigeons | | Cranes, Rails & relatives | | Grebes | | Flamingos | | Shorebirds | | Sunbittern, Kagu | | Tropicbirds | | Loons | | Penguins | | Tubenoses | | Storks | | Gannets, Cormorants & relatives | | Pelicans, Ibises, Herons & relatives | | Hoatzin | | Birds of Prey | | Owls | | Mousebirds | | Cuckoo roller | | Trogons | | Hornbills, Hoopoes, Wood hoopoes | | Rollers, Kingfishers, Bee-eaters & relatives | | Woodpeckers and Relatives | | Seriemas | | Falcons, Caracaras | | Parrots | | Perching birds (Songbirds) |
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| Andean guan SA | | Band-tailed guan SA | | Bare-faced curassow EU ,AS,nEU,SA | Baudo guan
(Ortoni's Guan) | | Bearded guan SA | Belem curassow
(Natterer’s curassow) | Black curassow
(No Subspecific status) EU ,nEU,AS,SA | Black guan
(Black sickle-winged guan) NA | Black-fronted piping-guan
(White-crested piping-guan) EU ,SA | Blue-billed curassow
(Blue-knobbed Curassow) EU ,AS,NA,SA | Blue-throated piping-guan
(Venezuelan blue-throated piping-guan)
(White-headed piping-guan) NA,EU ,nEU,AS,SA | | Central American crested guan NA,SA | | Chaco chachalaca EU ,nEU,AS,NA,SA | | Chestnut-bellied guan SA | | Chestnut-winged chachalaca | Crested guan
(No Subspecific status) SA,NA | | Crestless curassow EU ,SA | | Dusky-legged guan SA | East Brazilian chachalaca
(Brazilian chachalaca) | | Eastern black curassow | Great curassow
(Nominate subspecies) EU ,nEU,AS,NA,SA | | Grey-headed chachalaca NA | Highland guan
(Black penelopina) NA | | Horned guan EU ,NA | Little chachalaca
(Variable chachalaca) EU ,SA | Marail guan
(No Subspecific status) | | Nocturnal curassow EU ,SA | Northern Helmeted curassow
(MĂ©rida helmeted curassow) EU ,nEU,AS,NA,SA | | Northern Marail guan EU | Northern plain chachalaca
(Northern chachalaca) | | Nothern crested guan NA | Plain chachalaca
(No Subspecific status) NA,SA | Plain chachalaca
(Nominate subspecies) | Razor-billed curassow
(Greater Razor-billed curassow) EU ,AS,SA,NA,AU | | Red-billed curassow EU ,nEU,SA | | Red-throated piping-guan EU ,SA | | Rufous-bellied chachalaca NA | Rufous-headed chachalaca
(Ecuadorian chachalaca) SA,NA | Rufous-vented chachalaca
(Rufous-tailed chachalaca) SA,EU ,NA | | Rusty-margined guan SA | Salvin's curassow
(Salvin's Razor-billed curassow) SA | | Scaled chachalaca SA | Sickle-winged guan
(Goudot`s Sickle-winged guan) SA | | Southern crested guan | | Southern helmeted curassow nEU,SA | | Southern Marail guan | Speckled chachalaca
(Spotted chachalaca) SA,NA | | Spix's guan nEU,SA,NA | | Trinidad piping-guan | | Wattled curassow NA | Wattled guan
(Wattled piping-guan) SA,NA | | West Mexican chachalaca NA | | Western black curassow | | White-bellied chachalaca NA | | White-browed guan SA | | White-crested guan EU | White-throated Piping-guan
(Gray`s piping-guan) EU | | Yellow-knobbed curassow nEU,EU ,SA,NA | | Yucatan Plain Chachalaca NA | |
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Eastern black curassow
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Crax alector alector
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LINNAEUS, 1766 |
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| | Information Source for Taxonomy: | del Hoyo & Collar (2014) Illustrated Checklist of the Birds ot the World, Vol. 1, Non-passerines
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