[1] Institute for Wildlife Studies. webpage. San Clemente Loggerhead Shrike Recovery Program. www.iws.org/shrike_recovery_program.htm accessed January 7, 2006.
[2] NatureServe. 2005. NatureServe Explorer: An online encyclopedia of life [web application]. Version 4.5. NatureServe, Arlington, Virginia.
[3] U.S. Navy. 2001. Shrike Back. Currents, Fall 2001.
[4] U.S. Navy. 2004. Something to shrike about. Currents, Fall 2004:7-13. [5] USFWS. webpage. San Clemente loggerhead shrike, Lanius ludovicianus mearnsi. http://ecos.fws.gov/docs/life_histories/B05R.html accessed January 7, 2006.