Simplify the following text for a Grade 10 native English-speaking person.
Original: The word `` quetzal '' was originally used for just the Resplendent Quetzal , Pharomachrus mocinno , the famous long-tailed quetzal of Central America , which is the national bird and also the name of the currency of Guatemala .
Simplified: The word `` quetzal '' was first used to mean the Resplendent Quetzal , a famous long-tailed quetzal that lives in Central America . The Resplendent Quetzal is the national symbol of Guatemala .