Breeding of introduced Black Swans in Japan.
J. Kikkawa and Y. Yamashina
Emu
66(4) 377 - 381
Published: 1966
Abstract
The laying season of captive and semi-captive Black Swans in Japan suggests that apparent environmental cues which trigger or inhibit breeding in Australia arc not operative for the introduced Swans.https://doi.org/10.1071/MU966377
© Royal Australian Ornithologists Union 1966