Nothocercus

The kind Nothocercus includes/understands three species S:

Nothocercus bonapartei (Gray, 1867) - Tinamou de Bonaparte.
Nothocercus julius (Bonaparte, 1854) - Tinamou with russet-red head.
Nothocercus nigrocapillus (Gray, 1867) - Tinamou with cap.

Reference

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Elba (river) | Eremitalpa | Plantations of the Red Grounds | Reserve funds for the retirements | “It” returned | Lucy_Layton