Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood (2019) The eBird/Clements checklist of birds of the world: Version 2019 http://www.birds.cornell.edu/clementschecklist/download, läst 2019-08-11
Daniel Stahler, Bernd Heinrich och Douglas Smith (2002). Common ravens, Corvus corax, preferentially associate with grey wolves, Canis lupus, as a foraging strategy in winter. "64". sid. 283–290. doi:10.1006/anbe.2002.3047.
E. Gwinner (1964). ”Untersuchungen über das ausdrucks und Sozialverhalten des Kolkraben (Corvus corax L.)”. Zeitschrift für Tierpsychologie 21 (6): sid. 657–748., refererad i Common Raven i engelskspråkiga Wikipedia 29 maj 2007
A.J. Gaston och R.D. Elliot (1996). ”Predation by Ravens Corvus corax on Brunnich's Guillemot Uria lomvia eggs and chicks and its possible impact on breeding site selection”. Ibis 138: sid. 742-748., refererad i Common Raven i engelskspråkiga Wikipedia 29 maj 2007
Kijne M & Kotrschal K (2002) "Neophobia affects choice of food-item size in group-foraging common ravens (Corvus corax)". Acta ethologica5(1): 13–18, refererad i Common Raven i engelskspråkiga Wikipedia 29 maj 2007
