Food Habits Rheas are omnivorous, preferring broad-leaved plants and clover. However, they eat a variety of seeds, roots and fruits. Reproduction Their breeding season is from August to January, depending on the region.
Males court two to twelve females.
Once mating has occurred, the males build nests, which are shallow holes in the ground with a rim that is surrounded by twigs and vegatation. Each of the females lay one egg in the male's nest every other day for a period of seven to ten days. After the first two or three days of egg laying, the male stays with his nest and eggs and begins incubating them. A male usually incubates ten to sixty eggs. The chicks hatch within thirty-six hours of each other.