Seriema these birds in the Tupian languages are variously spelled as "siriema", "sariama", and "çariama", and mean "crested". Both species are around long (the red-legged seriema is slightly bigger than the black-legged, with 90 and 70–85 cm respectively). They forage on foot and run from danger rather than fly (though they can fly for short distances, and they roost in trees). They have long legs, necks, and tails, but only short wings, reflecting their way of life. They are among the largest ground-dwelling birds endemic of the Neotropics (only behind rheas). They are brownish birds with short bills and erectile crests,
Black-legged seriema foxes. Seriemas are very fierce, and they have been known to attack humans, especially when defending their young. Black-legged seriema The black-legged seriema ("Chunga burmeisteri") is one of two living species of seriemas in the family Cariamidae. It is found in Argentina, Bolivia, and Paraguay. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland. The black-legged seriema is similar to its relative, the red-legged seriema, "Cariama cristata". However, the black-legged seriema is more arboreal than its cousin, and it prefers to spend more time in trees. They often live together in family groups, and