Madagascar serpent-eagle Eutriorchis astur

Very rare and enigmatic large raptor that is endemic to Madagascar. Occurs very locally in pristine eastern rainforest, where it hunts inside of the forest, never soaring. Call is a series of low “how” notes, sometimes delivered in slow series and sometimes more quickly and emphatically. Very similar to Henst’s Goshawk. Subtle differences include slightly larger size, denser barring on the chest, thinner black bands on the tail, and dark barring on the back.