Aythya collaris (bird)
Mass: 730.0 g
Latitudinal range: 40.9° to 43.8°
Found in two samples
Canada: Keffer (Midden 57, screened) (Holocene)
United States: Hulme Site (Holocene)
Size measurements:
| body mass | 730 g | (N = 0) |
See also Aythya, Aythya affinis, Aythya americana, Aythya ferina, Aythya marila, Aythya nyroca, Aythya sp., Aythya spp.