Giant anteaters have been seen on Marajo Island breaking tinamou eggs. Other common names for the species include "perdiz grande", "rufous tinamou", and "ynambu". The quebracho crested tinamou is approximately in length. By 20 days, the young slaty-breasted tinamou has gained adult size, though not adult weight. The tinamou family consists of 46 extant species in nine genera. The quebracho crested tinamou is found in dry forests up to . Its bill is longer and heavier than that of the cinereous tinamou. Tinamus is a genus of birds in the tinamou family. The Andean tinamou is approximately in length. The tataupa tinamou is approximately in length. In 1921, Argentina urged the control of commercial hunting of several bird species, including tinamou. The great tinamou prefers the rainforests on the slopes. For example, the egg of the red-winged tinamou dulls from purple to leaden. In most tinamou species, the males practice simultaneous polygyny and the females sequential polyandry. The smallest species, the dwarf tinamou, weighs about with a length of .