[1] Anderson, D.W., J.O. Keith, F. Gress, E. Palacios, C.J. Henny, and C. Godinez. 2004. Biogeographic perspective and population estimates of the California brown pelican: toward a range-wide database. Thirty-first Annual Meeting – Pacific Seabird Group La Paz, Baja California Sur, México – 21-25 January 2004
[2] Shields, M. 2002. Brown Pelican (Pelecanus occidentalis). In The Birds of North America, No. 609 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.