Nisaetus (Crested hawk-eagles group) is a genus of subfamily Aquilinae found mainly in tropical Asia,
earlier placed within the genus Spizaetus.

1/ Changeable hawk-eagle (Diều đầu nâu, Nisaetus cirrhatus) or crested hawk-eagle, marsh hawk-eagle or Indian crested hawk-eagle
The genus name Nisaetus combines the Medieval Latin nisus for a sparrowhawk with the Ancient Greek aetos meaning "eagle".

2/ Mountain hawk-eagle (Diều núi, Nisaetus nipalensis) or Hodgson's hawk-eagle