Red-legged seriema | |
---|---|
Pantanal, Brazil | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Cariamiformes |
Family: | Cariamidae |
Genus: |
Cariama Brisson, 1760 |
Species: | C. cristata |
Binomial name | |
Cariama cristata (Linnaeus, 1766) |
|
Synonyms | |
Genus-level:
Species-level:
|
Genus-level:
Species-level:
The red-legged seriema or crested cariama (Cariama cristata) is a mostly predatory terrestrial bird in the seriema family (Cariamidae), included in the "Gruiformes" in the old paraphyletic circumscription, but increasingly placed in a distinct order Cariamiformes (along with three extinct families). The red-legged seriema inhabits grasslands from Brazil south of the Amazon to Uruguay and northern Argentina. The area over which it occurs is estimated at 5.9 million km², though the bird is not found everywhere in this region of course. The species is absent from the Mata Atlântica and planalto uplands along the coast of Brazil.
It is 75 to 90 cm (30 to 36 in) long and weighs about 1.5 kg, with a fairly long neck, tail, and legs. The plumage is medium brown above with black markings; pale brown on the head, neck, and breast; and white on the belly. The tail has a black band near the tip and a white tip. The beak and legs are red, and the eyes are yellow. Soft feathers emerge from the base of the bill to form a fan-shaped crest.
Many other characteristics are shared with the black-legged seriema (Chunga burmeisteri), the only other living member of its family. Some of these traits are discussed in the Cariamidae article.
The song has a quality described as "a cross between 'the serrated bark of a young dog and the clucking of turkeys'". At the loudest part of the song, the bird has its neck bent so its head is touching its back. Both members of a pair as well as young down to the age of two weeks sing; often one member of a family starts a song just as another finishes, or two sing simultaneously. The song can be heard several kilometres away; in Emas National Park, Brazil, in 1981–1982, observers often heard four red-legged seriemas or groups singing at once.