The most common and most likely answer to this crossword clue is the 6 letter word CONDOR
I've seen this crossword clue in The Daily Telegraph
C
O
N
D
O
R
More clues leading to the result CONDOR
- Below NY apartment, see rook or vulture
- High-flyer right to support Tory party
- Bird’s trick on spinning perch
- Swindle and cheat Republican predator
- Bird misdirected staff on party
- Bird, fabulous bird, travelling west crossing over northern Germany
- Criminal swindle — then never-ending bird
- Criminal act by ring leader getting bird
- Criminal cheat with never-ending bird
- Type of complex, rare bird
Buddy explains!

The straight part
We know that "bird" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case bird = condor.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 CONDOR mean?
CONDOR noun- Either of two New World vultures, Vultur gryphus of the Andes or Gymnogyps californianus, a nearly extinct vulture of the mountains of California.
- A gold coin of some South American countries bearing the figure of one of these vultures.
- An Argentinian short range ballistic missile.
- In golf, four under par (quadruple birdie, triple eagle, or double albatross)