The black-legged seriema (Chunga burmeisteri) is one of two living species of seriemas in the family Cariamidae. It is found from southeastern Bolivia and northern Paraguay south into north-central Argentina. It is a large, mostly grey bird with a long neck, a long tail, and long, slender black legs. Its belly, vent and thighs are yellowish-white. The sexes look similar, as do immature birds, though the latter are more patterned on head, neck and back. First described for science by Gustav Hartlaub in 1860, it is monotypic, with no subspecies. Like its red-legged cousin, it is an omnivore. It seldom flies, instead pursuing prey and eluding danger on foot. Its loud calls, said to sound like kookaburras, turkeys or yelping dogs, are often given in duet. Little is known about its breeding eco