Evolutionary BiologybioRxiv
Male age is associated with extra-pair paternity, but not with extra-pair mating behaviour
A. Girndt, C. W. T. Chng, T. Burke, J. Schroeder
The study finds that older male house sparrows sire more extra-pair offspring, but their mating behavior and female solicitation are not age-related.
DOI 10.1038/s41598-018-26649-1