References

	image by: Gail J. Worth Aves International http://www.avesint.com

• About.Com. <URL: http://animals.about.com/od/woodpeckerstoucans/Woodpeckers_and_Relatives.htm>. Accessed 23 April 2008.

• Freeman, Scott. Biological Science. 2nd Ed. Pearson Education, Inc. 2005.

• HighBeam Encyclopedia 2008.  <URL: http://www.encyclopedia.com/doc/1O8-Ramphastidae.html>.  Accessed 22 April 2008.

• The Internet Bird Collection(IBC).  <URL: http://ibc.hbw.com/ibc/phtml/familia.phtml?idFamilia=101>.  Accessed 22 April 2008.

• Minelli, Alessandro.  The Great Book of Birds.  Philadelphia: Courage Books, 1990.
  219. 

• Oldfield, Sara.  Rainforest.  United Kingdom: MIT Press, 2002.  135. 

• Perrins, Christopher M., and Middleton, Ales LA.  The Encyclopedia of Birds.  New
  York: Facts On File, Inc., 1985.  286-289

• Schnek, Marcus, and Caravan, Jill.  Caring for Exotic Birds.  New Jersey: Quintet
  Publishing Limited, 1991.  120. 

• Sci-Tech Dictionary. <URL: http://www.answers.com/topic/piciformes-1>. Accessed 23 April 2008.

• Taylor, Barbara.  Rain Forest.  London: Covent Garden Books Ltd., 1998.  26-27. 

• The World Atlas of Birds.  Toronto: Mitchell Beazley Publishers Limited, 1974.
  82,85,198,249. 

• Zipcodezoo.com. <URL: http://zipcodezoo.com/Key/Ramphastos_Genus.asp>. Accessed 23 April 2008.

   

• http://www.nashvillezoo.org/piciformes/ramphastidae.htm

• http://zipcodezoo.com/Animals/R/Ramphastos_toco.asp

• http://www.emeraldforestbirds.com/

• http://www.geocities.com/toucanadam/species.htm