- 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.
Origin: ; from Classical Latin avis, bird plush fauna
- avifaunal adjective
Used by arrangement with John Wiley & Sons, Inc.
Origin: Latin avis, bird; see awi- in Indo-European roots + fauna.
- aˌvi·fauˈnal adjective