Sheppard Software
Sheppard Software: Rheas
This site gives an in-depth description of a rhea, including its behavior, appearance, reproduction, and classification. The site includes photos and illustrations and an interactive quiz to test your understanding.
InterKnowledge Corp.
Geographica.com: Adventure in Argentina
This site from Geographica.com contains information on a variety of parks in Argentina. A description of each follows the name of the park.
Earth Life
Earth Life Web: Bird Orders of the World
At this site from Earth-Life Web, you can find a list of 23 bird orders and additional facts on each species. Taxonomy and photos are included.