Authors: Petersen, AD Lombardo, MP Power, HW

Citation: Ad. Petersen et al., Left-sided directional bias of cloacal contacts during tree swallow copulations, ANIM BEHAV, 62, 2001, pp. 739-741

Authors: Lombardo, MP Thorpe, PA Power, HW

Citation: Mp. Lombardo et al., The beneficial sexually transmitted microbe hypothesis of avian copulation, BEH ECOLOGY, 10(3), 1999, pp. 333-337