The snake eagles are placed in the subfamily Circaetinae.
Snake or serpent eagles are, as the name suggests, adapted to hunting reptiles.
- Subfamily Circaetinae. Genera: Circaetus, Spilornis, Dryotriorchis, Terathopius.
- Eutriorchis (subfamily Gypaetinae or Circaetinae).
Despite filling the niche of a snake eagle, genetic studies suggest that the Madagascan serpent eagle Eutriorchis is not related.