There are two living species of seriemas. Chunga is one of two known genera of seriemas in the family Cariamidae. The seriemas and bustards represent distinct lineages within neoavian waterbirds. Their closest modern-day relatives are believed to be the seriemas. The limited fossil evidence suggested that Idiornithidae much resembled seriemas. The only living relatives of "Titanis" are the seriemas. Farmers in South America often capture young seriemas from the wild, and tame them.