Generally, two white, slightly speckled eggs are laid. Incubation is carried out by both sexes for 25-30 days. The chicks are covered in long, light brown feathers. They are fed by both parents and are able to leave the nest at about 12-15 days where they follow their parents around on the ground. Even at this age, the chicks are able to produce a call similar to the adult vocalization, and may assist the parents with defense of the territory.
Chicks fledge at one month.
Sexual maturity has been reported at eight months in captivity. The Red-legged Seriema is not considered a threatened species. Although their traditional habitat is changing due to human interference, seriemas seem to have adapted to these changes. However, exact counts of the species have not been conducted, so their true status is not known. Further complicating the matter is their far reaching call, which may yield a false count of the actual number.