<P> As the crow flies, similar to in a beeline, is an idiom for the most direct path between two points . This meaning is attested from the early 19th century, and appeared in Charles Dickens's novel Oliver Twist: </P> <P> We cut over the fields at the back with him between us--straight as the crow flies--through hedge and ditch . </P>

Why do they say as the crow flies
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