Strausberger, Bill Michael. Brown-headed cowbird reproduction: Oology, parasitism patterns, and mating system. Brown-headed cowbird reproduction: Oology, parasitism patterns, and mating system. Biology, Ecology. 2014-03-17
    https://indigo.uic.edu/articles/thesis/Brown-headed_cowbird_reproduction_Oology_parasitism_patterns_and_mating_system_/10840121