
TY  - JOUR
A1  - Pohl-Apel, G 
A1  - Sossinka, R 
A1  - Wyndham, E 
T1  - Gonadal Cycles of Wild Budgerigars, Melopsittacus undulatus (Psittaciormes: Platycercidae)
JF  - Australian Journal of Zoology
JO  - Aust. J. Zool.
Y1  - 1982
VL  - 30
IS  - 5
SP  - 791
EP  - 797
KW  - 
UR  - https://doi.org/10.1071/ZO9820791 
N2  - Non-breeding wild budgerigars from semiarid and arid regions of Australia had small testes with the seminiferious epithelium consisting of two or three layers of spermatogonia, or small and undeveloped ovarian follicles. During breeding testes increased in size by 30-40 times, and gonads passed through spermatogenic or oogenic cycles similar to those in birds that breed in non-arid regions of the world. 
ER  -

