Redigerer Apeørn (avsnitt)

== Referanser ==
<references>
<ref name="Artsdatabanken (2023)">Apeørn ''Pithecophaga jefferyi''. Artsdatabanken, besøkt 2023-01-15 https://artsdatabanken.no/ScientificName/Pithecophaga%20jefferyi/175207</ref>

<ref name="BirdLife (2017)">BirdLife International. 2017. ''Pithecophaga jefferyi'' (amended version of assessment). The IUCN Red List of Threatened Species 2017: e.T22696012A118861385. http://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T22696012A118861385.en. Downloaded on 28 May 2018.</ref>

<ref name="BirdLife International (2018)">BirdLife International. 2018. ''Pithecophaga jefferyi'' (amended version of 2017 assessment). The IUCN Red List of Threatened Species 2018: e.T22696012A129595746. https://dx.doi.org/10.2305/IUCN.UK.2017-3.RLTS.T22696012A129595746.en. Accessed on 14 January 2023.</ref>

<ref name="Boyd (2017)">{{Kilde www | forfatter=Boyd III, John H. | url=http://jboyd.net/Taxo/List9.html#accipitridae | tittel=Taxonomy in Flux: Version 3.02 | besøksdato=2017-06-08 | dato=2017-01-14}}</ref>

<ref name="Bueser ''et al.'' (2003)">Bueser, G.L.L., Bueser, K.G., Afan, D.S., Salvador, D.I., Grier, J.W., Kennedy, R.S. & Miranda, H.C. Jr. (2003) Distribution and nesting density of the Philippine Eagle Pithecophaga jefferyi on Mindanao Island, Philippines: what do we know after 100 years? ''Ibis'' '''145'''(1): 130-135.</ref>

<ref name="Clark, Sharpe, Boesman & Marks (2018)">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).</ref>

<ref name="Doctolero, Saldajeno & Leones (2007)">Doctolero, Heidi; Pilar Saldajeno; Mary Ann Leones (April 29, 2007). ''Philippine biodiversity, a world's showcase''. Manila Times. Arkivert 2008-10-20. https://web.archive.org/web/20081020150914/http://www.manilatimes.net/national/2007/apr/29/yehey/weekend/20070429week2.html</ref>

<ref name="EDGE (2023)">EDGE of Existence: ''Top 100 EDGE birds''. The Zoological Society of London, 2023 https://www.edgeofexistence.org/species/species-category/birds/ Besøkt 2023-01-14</ref>

<ref name="Ferguson-Lees & Christie (2001)">Ferguson-Lees, J.; Christie, D. (2001). Raptors of the World. London: Christopher Helm. pp. 717–19. ISBN 0-7136-8026-1</ref>

<ref name="Gamauf, Preleuthner & Winkler (1998)">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</ref>

<ref name="Kennedy ''et al.'' (2000)">Kennedy, R. S., Gonzales, P. C.; Dickinson, E. C.; Miranda, H. C., Jr. and Fisher, T. H. (2000). ''A Guide to the Birds of the Philippines.'' Oxford University Press, New York. ISBN 0-19-854669-6</ref>

<ref name="Lerner ''et al.'' (2017)">Lerner, Heather ''et al.'' (2017) [https://dx.doi.org/10.11646/zootaxa.4216.4.1 Phylogeny and new taxonomy of the Booted Eagles (Accipitriformes: Aquilinae)]. Zootaxa, [S.l.], v. '''4216''', n. 4, p. 301–320, jan. 2017. ISSN 1175-5334. doi:https://dx.doi.org/10.11646/zootaxa.4216.4.1. Date accessed: 06 june 2017.</ref>

<ref name="Lerner & Mindell (2005)">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</ref>

<ref name="Panopio (2017)">Panopio, J. K., 2017. ZSL EDGE of existence Survival Blueprint for the Philippine Eagle, ''Pithecophaga jefferyi''. https://www.edgeofexistence.org/wp-content/uploads/2017/06/Survival_Blueprint_Pithecophaga_jefferyi.pdf</ref>

<ref name="Rare Birds Yearbook (2009)">''Rare Birds Yearbook 2009''. England: MagDig Media Lmtd. 2008. pp. 126–127. ISBN 978-0-9552607-5-9.</ref>

<ref name="Shufeldt (1919)">Shufeldt, RW (1919). Osteological and other notes on the monkey-eating eagle of the Philippines, ''Pithecophaga jefferyi'' Grant. ''Philippine Journal of Science''. '''15''': 31–58.</ref>

<ref name="Sutton et al. (2022)">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</ref>

<ref name="Syvertsen ''et al.'' (2008)">Syvertsen, P. O., Ree, V., Hansen, O. B., Syvertsen, Ø., Bergan, M., Kvam, H., Viker, M. & Axelsen, T. 2008. Virksomheten til [[Norsk navnekomité for fugl]] (NNKF) 1990-2008. [http://www.birdlife.no/fuglekunnskap/navn/ Norske navn på verdens fugler]. ''[[Norsk Ornitologisk Forening]]''. [http://www.birdlife.no www.birdlife.no] (publisert 22.5.2008). Besøkt 2016-08-07</ref>

<ref name="Syvertsen ''et al.'' (2017)">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</ref>
</references>