N. m. maculosa
The spotted nothura is approximately 24 to 25.5 cm (9.4–10.0 in) in length. The upper parts are brown with streaked buff. The under parts are buff streaked with black and brown on the breast, with barring to the flanks. Its crown is black streaked with buff and the throat is white. The overall hue in colour varies greatly over its range; in part caused by the differences in soil at the specific localities. It and the closely related Chaco nothura, N. chacoensis, are the only nothuras with barring to both webs of the primaries. The legs are dull yellowish-grey or brown.
The call of the spotted nothura is a series of brief high-pitched notes.
This species can reproduce rapidly, as the female is mature within 2 months and can have five to six broods per year. The male does not mature as fast. The male will incubate the eggs and raise the chicks. Like most tinamous, its eggs have a spectacular glossy porcelain-like shell. This is colored a rich maroon or chocolate brown in this species. The clutch contains 4-6 eggs.
All tinamou are from the family Tinamidae, and in the larger scheme are also ratites. Unlike other ratites, tinamous can fly, although in general, they are not strong fliers. All ratites evolved from prehistoric flying birds, and tinamous are the closest living relative of these birds.
- N. m. maculosa occurs in southeastern Brazil, northeastern Argentina, eastern Paraguay, and Uruguay.
- N. m. major occurs in interior east central Brazil; Minas Gerais, Goiás, and Bahia States.
- N. m. nigroguttata occurs on the plains of south central Argentina; Rio Negro and southeastern Neuquén Provinces.
- N. m. cearensis occurs in northeastern Brazil; southern Ceará State.
- N. m. paludivaga occurs in central Paraguay and north central Argentina.
- N. m. annectens occurs on the moist grasslands of eastern Argentina.
- N. m. submontana occurs in the Andean foothills of southwestern Argentina, Neuquén, Rio Negro, and Chubut Provinces.
- N. m. pallida occurs in the moist chaco grasslands of northwestern Argentina.
- Bencke, Glayson Ariel (2007): Avifauna atual do Rio Grande do Sul, Brasil: aspectos biogeográficos e distribucionais ["The Recent avifauna of Rio Grande do Sul: Biogeographical and distributional aspects"]. Talk held on 2007-JUN-22 at Quaternário do RS: integrando conhecimento, Canoas, Rio Grande do Sul, Brazil. PDF abstract
- BirdLife International (2008). "Bartlett's Tinamou - BirdLife Species Factsheet". Data Zone. Retrieved 12 Feb 2009.
- Brands, Sheila (Aug 14, 2008). "Systema Naturae 2000 / Classification, Nothura maculosa". Project: The Taxonomicon. Retrieved 12 Feb 2009.
- Clements, James (2007). The Clements Checklist of the Birds of the World (6th ed.). Ithaca, NY: Cornell University Press. ISBN 978-0-8014-4501-9.
- Davies, S.J.J.F. (2003). "Tinamous". In Hutchins, Michael. Grzimek's Animal Life Encyclopedia. 8 Birds I Tinamous and Ratites to Hoatzins (2nd ed.). Farmington Hills, MI: Gale Group. pp. 57–59, 65–66. ISBN 0-7876-5784-0.
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