Description: Males hold tails stiffly erect. Bills of breeding males blue. Swim with head and neck low in water. Good divers; remain submerged for prolonged periods. [details]
Citation: WoRMS (2013). Oxyura. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=159099 on 2013-05-23