Wiktionary
take wing
vb. Of a winged animal, to take flight; to begin flying.
Wikipedia
Take Wing
Take Wing (foaled 1938) was an American Thoroughbred gelding racehorse claimed for $3,000 and who would then earn more than $160,000 for new owner Clyde Troutt and set a new North American record for a mile and three-sixteenths on turf.
Usage examples of "take wing".
But she sang as if she knew he was there, as if it was all over and this was her last chance to take wing with an audience.