Abundance: 0.00 to 37.50% (median 0.71%)

Latitudinal range: 14.7° to 56.3°

Habitats: (25), tropical/subtropical savanna (1)

Found in 26 samples

Canada: Charlie Lake Cave (Zone IV), Keffer (Midden 57, screened)

Mexico: El Zurdo

Senegal: Dakar

United States: Zesch Cave, Silver Creek, Dust Cave (Zones T and U), Hulme Site, McIntosh, Lower Walnut Settlement, Taddlock, Fort Center Mound A, McLelland, Watson Brake (6.4 mm fraction), Rattlesnake Point Pueblo (Unit 2), Mosquito Willie, Harris Creek, Edwin Harness Mound, Itasca Bison Site, Coffey (Horizon III-5, 1972-73), Cole Gravel Pit, Jones, Schuiling Cave, Meyer Cave, Sunshine Locality (Unit D), Sunshine Locality (Unit E)

See also Anas acuta, Anas carolinensis, Anas clypeata, Anas crecca, Anas fulvigula, Anas platyrhynchos, Anas platyrhyncos, Anas querquedula, Anas sp., Anas spp.