Sullivan, K., R. Sieg, and C.N. Parish. 2007. Arizona's efforts to reduce lead exposure in California Condors. Pages 109-121 in A. Mee, L.S. Hall, and J. Grantham (Eds.) California Condors in the 21st Century. American Ornithologists' Union, Washington, D.C., USA and Nuttall Ornithological Club, Cambridge, MA, USA.