Северна белоглава сова (Serbian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Северна белоглава сова" in Serbian language version.

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books.google.com

Discussed in the "Habits" section of Northern White-faced Owl's entry in Owls of the World by Claus König and Friedhelm Weick (2008). pp. 315.
Newman, Kenneth (2002). Newman's Birds of Southern Africa. Struik. стр. 238. ISBN 978-1-86872-735-3. ^{[мртва веза]}
North American Owls: Biology and Natural History by Paul A. Johnsgard (1988), p. 63

See YouTube video Wild Transformer Owls - New and Natural! for same behavior exhibited by eastern screech owls