Syvertsen, P.O., M. Bergan, O.B. Hansen, H. Kvam, V. Ree og Ø. Syvertsen 2017: Ny verdensliste med norske fuglenavn. Norsk Ornitologisk Forenings hjemmesider: http://www.birdlife.no/fuglekunnskap/navn/om.php
Sutton, L. J., Ibañez, J. C., Salvador, D. I., Taraya, R. L., Opiso, G. S., Senarillos, T. L. P., & McClure, C. J. (2022). Priority conservation areas and a global population estimate for the Critically Endangered Philippine Eagle derived from modelled range metrics using remote sensing habitat characteristics. bioRxiv, 2021-11. doi: https://doi.org/10.1101/2021.11.29.470363
Lerner, H.R.L. & Mindell, D.P. (2005) Phylogeny of eagles, Old World vultures, and other Accipitridae based on nuclear and mitochondrial DNA. Mol. Phyl. & Evol. 37(2): 327–346. https://doi.org/10.1016/j.ympev.2005.04.010
Anita Gamauf, Monika Preleuthner, Hans Winkler, Philippine Birds of Prey: Interrelations among Habitat, Morphology, and Behavior, The Auk, Volume 115, Issue 3, 1 July 1998, Pages 713–726, https://doi.org/10.2307/4089419
Clark, W.S., Sharpe, C.J., Boesman, P. & Marks, J.S. (2018). Philippine Eagle (Pithecophaga jefferyi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/53152 on 28 May 2018).
