Berg, Elena C. (2005): Parentage and reproductive success in the white-throated magpie-jay, Calocitta formosa, a cooperative breeder with female helpers. Animal Behaviour 70(2): 375-385.doi:10.1016/j.anbehav.2004.11.008 (HTML abstract)
Emery, Nathan & Clayton, Nicola (2004): The Mentality of Crows: Convergent Evolution of Intelligence in Corvids and Apes. Science 306(5703): 1903 - 1907 doi:10.1126/science.1098410
Ericson, Per G.P.; Jansén, Anna-Lee; Johansson, Ulf S. & Ekman, Jan (2005): Inter-generic relationships of the crows, jays, magpies and allied groups (Aves: Corvidae) based on nucleotide sequence data. J. Avian Biol.36: 222-234.doi:10.1111/j.0908-8857.2001.03409.xPDF fulltext
Gill, F.B. (2003) Ornithology (2nd edition). W.H. Freeman and Company, New York.ISBN 0-7167-2415-4
Goodwin, D. (1986) Crows of the world. (2nd edition). British Museum of Natural History.ISBN 0-565-00979-6
James, Helen F.; Ericson, Per G.P.; Slikas, Beth; Lei, Fu-min & Olson, Storrs L. (2003): Pseudopodoces humilis, a misclassified terrestrial tit (Aves: Paridae) of the Tibetan Plateau: evolutionary consequences of shifting adaptive zones. Ibis145(2): 185–202.doi:10.1046/j.1474-919X.2003.00170.xPDF fulltext
Jones, Juli E,; Antoniadis, Elena; Shettleworth, Sara J. & Kamil, Alan C. (2002): A Comparative Study of Geometric Rule Learning by Nutcrackers (Nucifraga columbiana), Pigeons (Columba livia), and Jackdaws (Corvus monedula). Journal of Comparative Psychology 116(4): 350-356. HTML abstractPDF fulltext
Krushinskiy, L.V.; Zorina, Z.A. & Dashevskiy, B.A. (1979): [Ability of birds of the Corvidae family to operate by the empirical dimensions of figures]. Zhurnal vysshe nervno deiatelnosti imeni IP Pavlova 29(3): 590-597. [Article in Russian] PMID 112801 (HTML abstract)
Li, Shou-Hsien & Brown, Jerram L. (2000): High frequency of extrapair fertilization in a plural breeding bird, the Mexican jay, revealed by DNA microsatellites. Animal Behaviour 60(6): 867-877 doi:10.1006/anbe.2000.1554
Lee, T.M.; Soh, M.C.K.; Sodhi, N.; Koh, L.P. & Lim, S.L.H. (2005): Effects of habitat disturbance on mixed species bird flocks in a tropical sub-montane rainforest. Biological Conservation 122(2): 193-204.doi:10.1016/j.biocon.2004.07.005 (HTML abstract)
Marzluff, John M. & Angell, T. (2005): In the Company of Crows and Ravens. Yale University Press, New Haven, Connecticut.ISBN 0-300-10076-0
Marzluff, John M. & Neatherlin, Eric (2006): Corvid response to human settlements and campgrounds: Causes, consequences, and challenges for conservation. Biological Conservation 130(2): 301-314.doi:10.1016/j.biocon.2005.12.026 (HTML abstract)
Patterson, I. J., Dunnet, G. M., & Fordham, R. A. (1971): Ecological studies of the Rook Corvus frugilegus L. in northeast Scotland. Dispersion. J. Appl. Ecol. 8: 815-833.
Perrins, Christopher (2003): The New Encyclopedia of Birds Oxford University Press: Oxford ISBN 0-19-852506-0
Robertson, Don (2000): Bird Families of the World: Corvidae. Created 2000-JAN-30. Truy cập 2007-NOV-10.
