Role of thyroid in the response of bill pigmentation to male hormone of the house sparrow, Passer domesticus.
D000818:Animals; D001502:Beak / Q000033:anatomy & histology*; D001717:Birds / Q000502:physiology*; D001835:Body Weight; D002369:Castration; D008297:Male; D010858:Pigmentation; D012621:Seasons; D013737:Testis / Q000254:growth & development; D013739:Testosterone / Q000494:pharmacology; D013961:Thyroid Gland / Q000502:physiology*; D013965:Thyroidectomy
D013739:Testosterone