A small species of heron, Butorides virescens, of North America (sometimes considered a subspecies of the striated heron, Butorides striata).

plural of heroic dose

A particularly large dose of a drug, administered in an emergency as heroic medicine, or (in the case of recreational drugs) to produce very pronounced hallucinogenic effects.

plural of heroic assumption

A heron of the genus Tigrisoma, native to the Americas.