Audubon, John James
The birds of America
Macmillan, 1985
 Buku Referensi
The encyclopaedia of birds
edited by Christopher M. Perrins and Alex L.A. Middleton
Grolier International, 1993
 Buku Referensi
Mason, Victor
Birds of Bali
Periplus Editions, 1989
 Buku Referensi
Encyclopedia of birds
edited by Christopher M. Perrins, Alex L.A. Middleton
Facts on File, 1985
 Buku Referensi
Feduccia, Alan
The origin and evolution of birds
Yale University Press, 1999
 Buku Teks