Crossword Genius

The osprey changed, as if by magic (3,6)

Ross

I believe the answer is:

hey presto

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(Other definitions for hey presto that I've seen before include "Spell words" , "tricky words?" , "that's the trick" , "with the wave of a magic wand!" , "Abracadabra" .)

I've seen this clue in The Telegraph.
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