found:Work cat.: Bolen, E.G. Whistling-ducks : zoogeography, ecology, anatomy, 1983.
found:Web. 3.
found:AOU cklist.:p. 60.
found:Mayr. Birds of the world:p. 427.
found:Integrated Taxonomic Info. System, via WWW, Aug. 31, 2000(Dendrocygna. Vernacular name: whistling-ducks. Rank: genus. Usage: valid. Family: Dendrocygnidae)
found:The A.O.U. check-list of No. Amer. birds, 7th ed., via WWW, Aug. 31, 2000(each species in genus Dendrocygna has Whistling-Duck in common name; Dendrocygna in subfamily Dendrocygninae of family Anatidae)
found:Names of No. Amer. birds, via WWW, Aug. 31, 2000(each species in genus Dendrocygna has whistling-duck in common name)
found:The Sibley/Monroe world list of bird names, via WWW, Aug. 31, 2000(each species in genus Dendrocygna has Whistling-Duck in common name)
Dendrocygna
Dendrocygna