This large forest eagle is classified as Vulnerable on the basis of an estimated small population which may be declining through habitat loss, and locally at least, hunting. However, very little is known about its population size or trends and it may yet prove to be more secure than currently thought.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
75-90 cm. Very large, powerful eagle of forest canopies. Grey-brown upperparts including an erectile occipital ruff, barred wings and tail, pale brown upper breast, shading paler ventrally. Similar spp. In size, it is matched only by the short-tailed White-bellied Sea-eagle Haliaeetus leucogaster and the uniformly very dark brown Gurney's Eagle Aquila gurneyi. In plumage, it is similar to the smaller Long-tailed Buzzard Henicopernis longicauda and Doria's Hawk Megatriorchis doriae but has an unstreaked breast. Voice Repeated, deep, resonating calls and grunts, often at night. Hints Can be heard and occasionally seen in any large forest with limited shotgun hunting.
Beehler, B. 1985. Conservation of New Guinea rainforest birds. In: Diamond, A.W.; Lovejoy, T.E. (ed.), Conservation of tropical forest birds, pp. 233-247. International Council for Bird Preservation, Cambridge, U.K.
Beehler, B. M.; Crill, W.; Jefferies, B.; Jefferies, M. 1992. New Guinea Harpy-eagle attempts to capture a monitor lizard. Emu 92: 246-247.
Beehler, B. M.; Pratt, T. K.; Zimmerman, D. A. 1986. Birds of New Guinea. Princeton University Press, Princeton.
Coates, B. J. 1985. The birds of Papua New Guinea, 1: non-passerines. Dove, Alderley, Australia.
Gregory, P. 1995. Further studies of the birds of the Ok Tedi area, Western Province, Papua New Guinea. Muruk 7(1): 1-38.
Further web sources of information
Detailed species accounts from the Threatened birds of Asia: the BirdLife International Red Data Book (BirdLife International 2001).
Text account compilers
Derh, M., Dutson, G., Mahood, S., O'Brien, A., Stattersfield, A.
Beehler, B., Bishop, K., Burrows, I., Diamond, J., Kisokau, K., Mack, A., Dutson, G.
IUCN Red List evaluators
Butchart, S., Symes, A.
BirdLife International (2013) Species factsheet: Harpyopsis novaeguineae. Downloaded from http://www.birdlife.org on 20/12/2013. Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/12/2013.
This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
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Additional resources for this species
|Current IUCN Red List category||Vulnerable|
|Family||Accipitridae (Osprey, kites, hawks and eagles)|
|Species name author||Salvadori, 1875|
|Population size||2500-9999 mature individuals|
|Distribution size (breeding/resident)||734,000 km2|
|Links to further information|
|- Additional Information on this species|