Webeffigy mounds, earthworks in the shape of animals and birds, were raised in north america in areas that now correspond to parts of wisconsin, minnesota, illinois, iowa, and ohio. Common shapes for effigy mounds include birds, bear, deer, bison, lynx, panther, turtles, and water spirits. These are called effigy mounds.

Weban effigy mound is an earthen mound in the shape of an animal. Webthe most striking mounds are the 31 built in the shape of animals, most commonly birds and bears. The largest, called the great bear mound, is 137. Effigy mounds can be found throughout the north. Webonly a small percentage of the earthworks built by the adena, hopewell, and fort ancient cultures are effigy mounds, or earthworks in the shape of animals and birds.

Webonly a small percentage of the earthworks built by the adena, hopewell, and fort ancient cultures are effigy mounds, or earthworks in the shape of animals and birds.