[1] Gee, G.F. and S.G. Hereford. Mississippi Sandhill Cranes. U.S. Geological Service. Website(http://biology.usgs.gov/s+t/noframe/b157.htm) accessed December, 2005.
[2] Hereford, S.G. 2005. Personal communication with Scott Hereford, Senior Wildlife Biologist, Mississippi Sandhill Crane National Wildlife Refuge, December 2005.