Breeding Breeding season occurs between February and August. Nests are located on the ground and consist simply of a shallow depression. Begins breeding at four years of age. Two chalky white eggs are layed. Lacks brood patch and instead incubates with feet.
Parents share incubation duties.
Average incubation shift is 9.5 hours. Incubation period averages 43 days. Siblicide exhibited by chicks. The first egg hatches four to nine days before the second. The first chick to hatch ejects the second chick from the nest shortly after it emerges from the egg.