Redigerer Hegrefamilien (avsnitt)

== Referanser ==
<references>
<ref name="Elliott 'et al.'' (2016)">Elliott, A., Garcia, E.F.J. & Boesman, P. (2016). [http://www.hbw.com/node/52732 Hamerkop (''Scopus umbretta'')]. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). ''[[Handbook of the Birds of the World|Handbook of the Birds of the World Alive]]''. Lynx Edicions, Barcelona.</ref>

<ref name="Hackett 'et al.'' (2008)">Hackett SJ, Kimball RT, Reddy S, Bowie RC, Braun EL, Braun MJ, Chojnowski JL, Cox WA, Han KL, Harshman J, Huddleston CJ, Marks BD, Miglia KJ, Moore WS, Sheldon FH, Steadman DW, Witt CC, Yuri T (2008). "A Phylogenomic Study of Birds Reveals Their Evolutionary History". ''Science''. '''320''' (5884): 1763–1768. doi:10.1126/science.1157704. PMID 18583609.</ref>

<ref name="Kuramoto ''et al. (2015)">Kuramoto, T., H. Nishihara, M. Watanabe, and N. Okada (2015), [http://dx.doi.org/10.1093/gbe/evv213 Determining the Position of Storks on the Phylogenetic Tree of Waterbirds by Retroposon-Insertion Analysis], ''Genome Biol. Evol.'' '''7''', 3180-3189.</ref>

<ref name="Martínez-Vilalta & Motis (2018)">Martínez-Vilalta, A. & Motis, A. (2018). Herons (Ardeidae). 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/52203 on 6 June 2018).</ref>

<ref name="Scofield, Worthy & Tennyson (2010)">Scofield, R.P., Worthy, T.H. & Tennyson, A.J.D. (2010) A heron (Aves: Ardeidae) from the early Miocene St Bathans fauna of southern New Zealand. Proceedings of the VII International Meeting of the Society of Avian Paleontology and Evolution, Sydney, 18–22 August 2008. ''Rec. Austral. Mus.'' '''62'''(1): 89–104.</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>

<ref name="tif">{{Kilde www | forfatter=Boyd III, John H. | url=http://jboyd.net/Taxo/List8.html | tittel=Taxonomy in Flux: Version 3.04 | besøksdato=2016-08-06 | dato=2016-07-10}}</ref>
</references>