Pied harrier (Diều mướp, Circus melanoleucos) 

The pied harrier (Circus melanoleucos) is a bird of prey in the family Accipitridae, named for the male's white and black colouration.
The bird is a migratory bird endemic to Asia, ranging roughly from southern Siberia to the Philippines.

The breeding range of this species extends east roughly from Lake Baikal in southern Siberia through Mongolia and Northeast China, as far south as North Korea. 
The wintering range is from eastern India and Sri Lanka, through South East Asia to the Philippines and Borneo.

Traits:
- Male: Black-hooded;

accipitrinus Latin accipitrinus hawk-like (accipiter: hawk).
In both Latin and Greek, the root of the word "circus" means "ring" or "circle". The Latin word circus comes directly from the Greek word κίρκος (kírkos), which also means "circle" or "ring". This etymology describes the shape of the ancient Roman arenas and the modern performance spaces where circuses are held. 
 Melanoleucos comes from the Greek words melas and leucos, meaning black and white respectively.