Beehler, Bruce M., Thane K. Pratt, and Dale A. Zimmerman. 1986.
Birds of New Guinea
Princeton University Press. Princeton, New Jersey. 295 pgs.
(ISBN 0-691-02394-8)

Bertram, Brian C. R. 1992.
The Ostrich Communal Nesting System
Princeton University Press. Princeton, New Jersey. 196 pgs.
(ISBN: 0-691-08785-7)

Clements, James F. 2000.
Birds of the World: A Checklist: Fifth Edition.
Ibis Publishing Company. Vista, California. 867 pgs.
(ISBN: 0-934797-16-1)

Dorst, Jean. 1975.
La Vida de las Aves
Ediciones Destino. Barcelona. 797 pgs in two volumes.
(ISBN: 84-233-0930-4) (in Spanish)

Editorial Ramon Sopena, S.A. 1973.
Zoología Pintoresca
Editorial Ramon Sopena, S.A. Barcelona, España. pgs 412-413. (in Spanish)

Hanzak, J. 1972.
Gran Enciclopedia Ilustrada de las Aves
Traducción de Elizabeth Eckstein E. Revisión de J. Racenis. Círculo de Lectores.
Lectura. Caracas, Venezuela. Pg 23. (in Spanish)

Howard, Richard and Alick Moore. 1991.
A complete checklist of the Birds of the World. Second Edition.
Academic Press. San Diego, California. 622 pgs.
(ISBN 0-12-356910-9)

Marchant, S., P. J. Higgins, et al. 1990.
Handbook of Australian, New Zealand & Antarctic Birds: Volume 1: Part A: Ratites to Petrels
Oxford University Press. Oxford, Auckland, New York. 735 pgs.
(ISBN 0 19 553261 9)

Pizzey, Graham. 1980.
Birds of Australia
Princeton University Press. Princeton, New Jersey. 460 pgs.
(ISBN 0-691-08483-1)

Rand, Austin L. and E. Thomas Gilliard. 1968.
Handbook of New Guinea Birds
The Natural History Press. Garden City, New York. 628 pgs.

Salvadori, T. 1895.
Catalogue of the CHENOMORPHÆ (Palamedeæ, phoenicopteri, anseres), CRYPTURI, and RATITÆ in the collection of the British Museum
British Museum (Natural History). London. Volumen 27. 636 pgs.

Sibley, Charles G. and Burt L. Monroe, Jr. 1990.
Distribution and Taxonomy of Birds of the World.
Yale University Press. New Haven and London. 1111 pgs.
(ISBN 0-300-04969-2)