Bill small, wide at the base, compressed towards the end; culmen curved sharply from the cere; festoon distinct; nostrils oval, nearly horizontal, protected by long loral bristles. Wings long and pointed, exceeding the tail when closed; 2nd quill longest; tail moderately long, square at the end. Tarsi short and stout, feathered in front for more than half their length; naked parts reticulated throughout. Toes strong, reticulated above, except close to the claws, lateral toes subequal in length; middle claw keeled, the others rounded beneath.
This is a genus of small birds allied to the Kites and comprising five species, distributed throughout the tropics and subtropical countries of the world. One species is Indian.