all the birds in a particular region
WordReference Random House Unabridged Dictionary of American English © 2025
a•vi•fau•na
(ā′və fô′nə, av′ə),USA pronunciation n.
a′vi•fau′nal, adj.
a′vi•fau′nal•ly, adv.
- Birdsthe birds of a given region, considered as a whole.
- avi- + fauna 1870–75
a′vi•fau′nal•ly, adv.
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'avifauna' also found in these entries (note: many are not synonyms or translations):