Rio Solimões, Brazil.
All members of this genus have been placed, together with the members of Pauxi, and less often Nothocrax, in Crax. In the past, present species often considered conspecific with M. mitu, but genetic data suggest that it is most closely related to M. salvini and Pauxi unicornis#R. Has hybridized in captivity with several other species of curassow, including Crax alberti; at least some of these hybrids were fertile. Reported as marginally sympatric with M. salvini at some localities in Peru. Monotypic.
Amazonia in extreme SE Colombia (Amazonas), Brazil (almost exclusively S of Amazon, and E to Maranhão), Peru (S of R Marañón) and Bolivia (Pando, Beni, La Paz, Cochambamba and Santa Cruz).
Food and feeding
Status and conservation
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