- The definition of avifauna are the birds that live in a certain place or at a certain time.
- An example of avifauna is penguins living primarily in Antarctica.
- An example of avifauna is the moa of New Zealand becoming extinct before the year 1400.
avifauna definition by Webster's New World
the birds of a specified region or time
Origin: ; from Classical Latin avis, bird plush fauna
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
- avifaunal adjective
avifauna definition by American Heritage Dictionary
The birds of a specific region or period.
Origin: Latin avis, bird; see awi- in Indo-European roots + fauna.
- aˌvi·fauˈnal adjective