The sickle-billed vanga is a bird endemic to Madagascar. It is found in the open woods at low altitude, in dry areas, and in thorny areas. The sickle-billed vanga takes its name from its scientific name Falculea palliata; it is a dimorphic species. It measures about 32 cm. The species has a curved ivory beak 7 cm long. It allows it to search in the bark of trees for the insects necessary for its food.

The sickle-billed vanga is a social species. The vanga proceed as group of mixed herd. They are usually housed in the large branches.

The sickle-billed vanga is not a migratory bird. From October to January, the species reproduces. During the nuptial period, the male does not make any parade.The female is fertilized by two males. When the eggs hatch, they raise the young faculties together. The incubation period lasts up to 23 days. The eggs are covered in a nest of 30 to 40 cm in diameter. It is built entirely by the female.
The plumage of the sickle-billed vangais poignant. Its head, chest, back is white. Its wings and tail are black with a blue sheen. The iris of the sickle-billed vanga is brown. Its orbital ring is black. The species has grey to pale blue colored legs.