squacco UK /ˈskwækəʊ/US /ˈskwækoʊ/ noun1 •A species of pond heron, Ardeola ralloides, which is small, and brown and white in colour; it is found in Asia, Northern Africa, and Southern Europe.The Night-Herons had their nests a few feet above the water, as had also the Squaccos and Little Egrets, though those of the latter were sometimes placed just above the surface. — 1884 formssquaccos