Eutriorchis astur numbers must be very low and are certainly declining with extensive habitat clearance and disturbance, and probable human persecution.
Two recent records in reserves at Marojejy, September 1988, and Ambatovaky, February 1990, and two more from the Masoala peninsula (in an area targeted as a major new national park), during 1993--1994, confirm its survival, and local reports from the Maroantsetra region indicate the existence there of a raptor fitting its description. However Eutriorchis astur is likely to experience at least a 25% decline with severe fragmentation, within the next three generations.
The Madagascar Serpent-Eagle is listed as "Critically Endangered" by the IUCN. CITES lists the species as "Appendix 2".