Hoopoe, n. [So called from its cry; cf. L. upupa, Gr. , D. hop, F. huppe; cf. also G. wiedenhopf, OHG. wituhopfo, lit., wood hopper.].
A European bird of the genus Upupa (Upupa epops), having a beautiful crest, which it can erect or depress at pleasure, and a slender down-curving bill. Called also hoop, whoop. The name is also applied to several other species of the same genus and allied genera.