English version

be on the wing

From Longman Dictionary of Contemporary Englishbe on the wingbe on the wingliteraryHBBTRAVEL if a bird is on the wing, it is flying wing
Examples from the Corpus
be on the wingMay flies and caddis flies were on the wing.This area is noted for butterflies in the summer, and in August the purple hairstreak will be on the wing.
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