Home News Archive - MPI for Ornithology Does parenting hamper the sex life of male black coucals? Publications of Aline Kuhl All genres Journal Article (1) Journal Article (1) 2003 Journal Article Michiels, N. K.; Kuhl, A.: Altruistic sperm donation in a sperm-dependent parthenogenetic hermaphrodite is stabilized by reciprocal sperm exchange. Journal of Zoology 259 (1), pp. 77 - 82 (2003) MPG.PuRe DOI