REFERENCES

All About Birds - Bird Guide. 2006. Cornell Lab of Ornithology. http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/

Bird Identification Tips. 4 April 2007. United States Geological Service.
http://www.mbr-pwrc.usgs.gov/id/idlist.html

Peterson, Roger Tory and Virgina Marie Peterson. A Field Guide to the Birds of Eastern and Central North America, Fifth Edition. Boston: Houghton Mifflin Co., 2002

Sibley, David Allen. The Sibley Guide to Birds. Chanticleer Press, 2000.