ISBN 0-19-858511-X== External links ==* A classification of the bird species of South America at Museum.lsu.edu* Birdlife* The Internet Bird Collections* Arkive* EoL* Encyclopedia Britannica
ISBN 0-19-858511-X* A classification of the bird species of South America at Museum.lsu.edu* Birdlife* The Internet Bird Collections* Arkive* EoL* Encyclopedia Britannica