DescriptionBlack-neckedswan.JPG English: Cygnus melancoryphus seen at the Universidad de Concepcion, Concepcion, Chile. Date 18 January 2006 Source Own
DescriptionBlack-neckedSwan.jpg English: Picture of a Black-neckedSwan (Cygnus melanocoryphus) at San Francisco Zoo, USA. Date 25 November 2017, 15:57:57