The most common and most likely answer to this crossword clue is the 8 letter word AVIFAUNA
I've seen this crossword clue in The Times
A
V
I
F
A
U
N
A
More clues leading to the result AVIFAUNA
- Lusty creature in a Roman street for local birds
- The local birds stripped David Stubbs; nothing whatsoever covered!
- Puck, lusty creature, into female birds in the area
- A very intriguing fact, as Uruguay’s national airline leads all the fliers around
- Area 51 forNorth America’s flyers in a particular zone
- Local birds start to attack six local animals
- A very important fact about unusual native animals: just tips for birds
Buddy explains!

The straight part
We know that "birds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case birds = avifauna.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does AVIFAUNA mean?
AVIFAUNA noun- The birds, or all the kinds of birds, inhabiting a region.