Redigerer Fugler (avsnitt)

== Referanser ==
<references>
<ref name="Carboneras & Kirwan (2018)">Carboneras, C. & Kirwan, G.M. (2018). Lake Duck (''Oxyura vittata''). 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/52937 on 17 May 2018).</ref>

<ref name="Chiappe07">Chiappe, Luis M. (2007). ''Glorified Dinosaurs: The Origin and Early Evolution of Birds.'' University of New South Wales Press, Sydney. ISBN 978-0-86840-413-4.</ref>

<ref name="Clements et al. (2022)">Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. ''The eBird/Clements checklist of Birds of the World: v2022''. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/</ref>

<ref name="Gill, Donsker & Rasmussen (2022)">Gill F, D Donsker & P Rasmussen  (Eds). 2022. ''IOC World Bird List'' (v12.2). doi: [https://www.worldbirdnames.org/new/ https://doi.org/10.14344/IOC.ML.12.2.]</ref>

<ref name="del Hoyo ''et al.'' (2016)">del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2016). [http://www.hbw.com/order/caprimulgiformes Caprimulgiformes]. [[Handbook of the Birds of the World|Handbook of the Birds of the World Alive]]. Lynx Edicions, Barcelona.</ref>

<ref name="SNL (2009)">Kloakk: zoologi. (2009, 14. februar). I Store norske leksikon. Hentet 18. mai 2018 fra https://snl.no/kloakk_-_zoologi.</ref>

<ref name="Lee ''et al.'' (2014)>{{Cite journal | last1 = Lee | first1 = Michael SY | last2 = Cau | first2 = Andrea | last3 = Darren | first3 = Naish | last4 = Gareth J. | first4 = Dyke | year = 2013 | title = Morphological Clocks in Paleontology, and a Mid-Cretaceous Origin of Crown Aves | journal = Systematic Biology | volume = '''63''' | issue = 3 | pages = 442–9 | publisher = Oxford Journals | doi = 10.1093/sysbio/syt110| pmid = 24449041 }}</ref>

<ref name="McCracken, Wilson, McCracken & Johnson (2001)">McCracken, K. G., Wilson, R. E., McCracken, P. J., & Johnson, K. P. (2001). Sexual selection: Are ducks impressed by drakes' display?. ''Nature'', '''413'''(6852), 128. doi:[https://doi.org/10.1038/35093160 10.1038/35093160]</ref>

<ref name="Padian & Chiappe (1997)">Padian, K. & Chiappe, L.M. (1997): Bird Origins. I ''Encyclopedia of Dinosaurs'' (red. Currie, P.J & Padian, K., [[Academic Press]], [[San Diego]], side 41–96, ISBN 0 12 226810 5</ref>

<ref name="Pittalwala (2014)">Iqbal Pittalwala (2014) [http://ucrtoday.ucr.edu/26133 Tooth Loss in Birds Occurred About 116 Million Years Ago]. University of California, Riverside, 11. desember 2014. Besøkt 2017-07-26</ref>

<ref name="Ruggiero ''et al.'' (2015)">Ruggiero MA, Gordon DP, Orrell TM, Bailly N, Bourgoin T, Brusca RC, et al. (2015) [https://doi.org/10.1371/journal.pone.0119248 A Higher Level Classification of All Living Organisms]. ''PLoS ONE'' '''10'''(4): e0119248. https://doi.org/10.1371/journal.pone.0119248</ref>

<ref name="Sjøgren (2013)">Kristian Sjøgren (2013) [http://www.forskning.no/artikler/2013/januar/347124 Når mistet fuglene tennene sine?] {{Wayback|url=http://www.forskning.no/artikler/2013/januar/347124 |date=20130915202822 |df=iso }} forskning.no, 9. februar 2013. Besøkt 2017-07-26</ref>

<ref name="Thomas (2011)">Lars Thomas (2011) [http://illvit.no/dyr/parring/kjonnskamp-ga-endene-enorme-organer-47823258fb771f44dd4cd606694d765c84646b2a Kjønnskamp ga endene enorme organer]. ''Illustrert Vitenskap'', 7. februar 2011. Besøkt 2018-05-17</ref>

<ref name="Wathne (2009)">Kyrre Wathne (2009) [https://forskning.no/content/den-store-boka-om-dyrepeniser Den store boka om dyrepeniser] {{Wayback|url=https://forskning.no/content/den-store-boka-om-dyrepeniser |date=20180518130247 }}. ''forskning.no'', 18.11.2009. Besøkt 2018-05-18</ref>

<ref name="Øien & Shimmings (2015)">Ingar Jostein Øien og Paul Shimmings (2015) [https://www.birdlife.no/prosjekter/nyheter/?id=1573 NOF med bestandstall for alle norske hekkefugler]. Norsk Ornitologisk Forening, 17.11.2015</ref>
</references>