title: Seasonal fluctuations in the testicular asymmetry of birds.
abstract: A comparative study has been made of the seasonal fluctuations in the testicular asymmetry of the house crow, the common mina, the bank mina, the house sparrow and the roseringed parakeet. Their left testis usually attains a larger size and higher weight than the right one. These differences are more pronounced during the breeding seasons.
mesh_terms: D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D008297:Male; D009929:Organ Size; D012621:Seasons; D013737:Testis / Q000033:anatomy & histology*