This looks to have had a possible restoration, although not being an expert this may all intact. The bowl is 7 inches in diameter, 8 inches from nose to tail, 3 inches to the top of the rim and 5 inches to the top of the head. I believe this is a Duck, considering the importance of the duck to the Mississippians. The item "RARE Caddo Bird Duck Effigy Bowl" is in sale since Tuesday, July 21, 2015. This item is in the category "Collectibles\Cultures & Ethnicities\Native American\ US\Pre-1600\Pottery".
The seller is "termitestiques" and is located in New Haven, Indiana. This item can be shipped to United States.