48. The Distribution of Secondary Sexual Characters amongst Birds, with relation to their Liability to the Attack of Enemies
Mottram, J C
Article
1915
Proceedings of the Zoological Society of London
663--678
BioStor
English
London Academic Press, [etc.] 1833-1965
BioStor: https://biostor.org/reference/107399 DOI: https://doi.org/10.1111/j.1469-7998.1915.00663.x