Baretti: A dictionary of the English and Italian languages
Stuólo, s. m. troop, company, band, set, gang, crew. — di soldati, a troop or band of soldiers. — di pesci, a shoal of fishes. — d'uccelli, a flight of birds. — di lupi, a herd of wolves. — d'oche, a flock of geese. — di stornelli, a flock of starlings. Andare a —, to go in great numbers.
Florio: a worlde of wordes, or most copious, dictionarie in Italian and English
stuolo: a troope, a band, a squadron, a rout or company of men. Also a knot or crew of good fellowes, a beauy of Ladies, a flocke of faire women. Also a shoale of fishes, a flight of birdes, a swarme of Bees, &c.