Ugler (Norwegian Nynorsk Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ugler" in Norwegian Nynorsk language version.

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Galeotti, Paolo; Diego Rubolini (November 2007). «Head ornaments in owls: what are their functions?». Journal of Avian Biology 38 (6): 731–736. doi:10.1111/j.0908-8857.2007.04143.x.
Lundberg, Arne (May 1986). «Adaptive advantages of reversed sexual size dimorphism in European owls». Ornis Scandinavica 17 (2): 133–140. JSTOR 3676862. doi:10.2307/3676862.
Bachmann T.; Klän S.; Baughmgartner W.; Klaas M.; Schröder W.; Wagner H. (2007). «Morphometric characterisation of wing feathers of the barn owl Tyto alba pratincola and the pigeon Columba livia». Frontiers in Zoology 4: 23. PMC 2211483. PMID 18031576. doi:10.1186/1742-9994-4-23.

Holt, D. W., R. Berkley, C. Deppe, P. L. Enríquez, J. L. Petersen, J. L. Rangel Salazar, K. P. Segars, K. L. Wood, og J. S. Marks (2020). Eurasian Eagle-Owl (Bubo bubo), version 1.0. I Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, og E. de Juana, red.) Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.eueowl1.01

Lundberg, Arne (May 1986). «Adaptive advantages of reversed sexual size dimorphism in European owls». Ornis Scandinavica 17 (2): 133–140. JSTOR 3676862. doi:10.2307/3676862.