Penelope ochrogaster (E) (vulnerable) White-browed guan, Penelope jacucaca (E) (vulnerable) Blue-throated piping-guan, Pipile cumanensis Red-throated piping-guan, Pipile cujubi Black-fronted piping-guan, Pipile jacutinga (vulnerable) Chaco chachalaca, Ortalis canicollis Speckled chachalaca, Ortalis guttata East Brazilian chachalaca, Ortalis araucuan (E) Scaled chachalaca, Ortalis squamata (E) Variable chachalaca, Ortalis motmot Chestnut-headed chachalaca, Ortalis ruficeps (E) Buff-browed chachalaca, Ortalis superciliaris (E) Nocturnal curassow, Nothocrax urumutum Black curassow, Crax alector Wattled curassow, Crax globulosa (vulnerable) Bare-faced curassow, Crax fasciolata Red-billed curassow, Crax blumenbachii (E) (endangered) Crestless curassow, Mitu tomentosum Razor-billed curassow, Mitu tuberosum Alagoas curassow, Mitu mitu (E) (extinct in the wild) New World quails Order: GalliformesFamily: Odontophoridae The New World quails are small, plump terrestrial birds only distantly related to the quails of the Old World, but named for their similar appearance and habits. Crested bobwhite, Colinus cristatus Marbled wood-quail, Odontophorus gujanensis Spot-winged wood-quail, Odontophorus capueira Starred wood-quail, Odontophorus stellatus Flamingos Order: PhoenicopteriformesFamily: Phoenicopteridae Flamingos are gregarious wading birds, usually tall, found in both the Western and Eastern Hemispheres. Flamingos filter-feed on shellfish and algae. Their oddly shaped beaks are specially adapted to separate mud and silt from the food they consume and, uniquely, are used upside-down. Chilean flamingo, Phoenicopterus chilensis (near-threatened) American flamingo, Phoenicopterus ruber Andean flamingo, Phoenicoparrus andinus (V) James's flamingo, Phoenicoparrus jamesi (V) Grebes Order: PodicipediformesFamily: Podicipedidae Grebes are small to medium-large freshwater diving birds. They have lobed toes and are excellent swimmers and divers. However, they have their feet placed far back on the body, making them quite ungainly on land. White-tufted grebe, Rollandia rolland Least grebe, Tachybaptus dominicus Pied-billed grebe, Podilymbus podiceps Great grebe, Podiceps major Silvery grebe, Podiceps occipitalis Pigeons Order: ColumbiformesFamily: Columbidae Pigeons and doves are stout-bodied birds with short necks and short slender bills with a fleshy cere. Rock pigeon, Columba livia (I) Scaled pigeon, Patagioenas speciosa Picazuro pigeon, Patagioenas picazuro Spot-winged pigeon, Patagioenas maculosa Band-tailed pigeon, Patagioenas fasciata Pale-vented pigeon, Patagioenas cayennensis Plumbeous pigeon, Patagioenas plumbea Ruddy pigeon, Patagioenas subvinacea Sapphire quail-dove, Geotrygon saphirina Ruddy quail-dove, Geotrygon montana Violaceous quail-dove, Geotrygon violacea White-tipped dove, Leptotila verreauxi Gray-fronted dove, Leptotila rufaxilla Eared dove, Zenaida auriculata Blue ground dove, Claravis pretiosa Long-tailed ground dove, Uropelia campestris Purple-winged ground dove, Paraclaravis geoffroyi (critically endangered) Common ground dove, Columbina passerina Plain-breasted ground dove, Columbina minuta Ruddy ground dove, Columbina talpacoti Scaled dove, Columbina squammata Picui ground dove, Columbina picui Blue-eyed ground dove, Columbina cyanopis (E) (critically endangered) Cuckoos Order: CuculiformesFamily: