Pochard is a common name used for several species of diving ducks: Four species in the genus Aythya: Common pochard, Aythya ferina Baer's pochard, Aythya baeri Ferruginous pochard, Aythya nyroca Madagascar pochard, Aythya innotata Three species in the genus Netta: Red-crested pochard, Netta rufina Rosy-billed pochard or Rosybill, Netta peposaca Southern pochard, Netta erythrophthalma