Great Blue Herons And Their Rookeries
Great Blue Heron (Ardea herodias)
The great blue heron has long legs, a long neck and a daggerlike bill and stands about 4 feet tall. It has a gray blue body with white around the head. It is often mistaken for a crane, but the great blue heron flies with its neck folded in while cranes fly with their necks stretched out. This heron is commonly seen stalking prey — fish, turtles, frogs, snakes and crayfish — in the shallows of wetlands.
During the breeding season, great blue herons build large stick nests high in the trees, sometimes several nests in one area, which is known as a “rookery.” Great blue heron rookeries are located at various forest preserves in DuPage County, including Danada in Wheaton, Winfield Mounds in Winfield and Churchill Woods in Glen Ellyn.