Праве сове — разлика између измена

 

== Литература ==

* Olson, Storrs L. (1985). The fossil record of birds. ''In:'' Farner, D.S.; King, J.R. & Parkes, Kenneth C. (eds.): ''Avian Biology'' '''8''': 79–238. Academic Press, New York.

* Calaprice, Alice & Heinrich, Bernd 1990: ''Owl in the House: A Naturalist's Diary''

* Mayr, Gerald 2005: ''Old World phorusrhacid''

 

== Спољашње везе ==

{{Commonscat|Strigidae}}