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Showing Information results for crax rubra

Cracidae chachalacas, curassows, and guans

differing in plumage color or pattern, or cere color. In one curassow species the males develop an enlarged tracheal loop beneath the skin of the breast. Courtship feeding is part of the mating behavior of curassows. Male curassows in breeding season vocalize with a deep, resonant humming. The yellow knob at the base of the bill of great curassows (Crax rubra) increases in size during courtship. The breeding season for cracids is variable and for some species breeding starts in March and ends in July