Campbell, N.A., Reece, J.B., Urry, L.A., Cain, M.L., Wasserman, S.A., Minorsky, P.V., Jackson, R.B. 2008. Biology. 8^th Ed. Pearson Education Inc, New York. 537-538.

Elphick, C., Dunning, Jr., J.B. and Sibley, D.A. 2001. The Sibley guide to bird life and behavior. Alfred A. Knopf. New York.

Hutchins, M., Jackson, J.A., Bock, W.J., and Olendorf, D., Eds. 2002. Grzimek's Animal Encyclopedia: Volumes 8-11: Birds I-IV. 2^nd Ed. Auks, Puffins, and Murres. Gale Group, Farmington Hills, MI.

ITIS. www.ITIS.gov. Retrieved 4-01-09.

Sale, R. 2006. A complete guide to arctic wildlife. Firefly Books, Buffalo, New York, US.

The New Encyclopedia Britannica: Volume 1: Micropaedia Ready Reference. 15^th Ed. 2007. Auk. Encyclopedia Britannica Inc, Chicago.

Special thanks to Dave Mansell for the excellent photographs of the Auk predation.

 

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