Hormones modulate the concentration of cytoplasmic progestin receptors in the brain of male ring doves (Streptopelia risoria).
Balthazart J, Blaustein JD, Cheng MF, Feder HH. Hormones modulate the concentration of cytoplasmic progestin receptors in the brain of male ring doves (Streptopelia risoria). J Endocrinol. 1980 Aug; 86(2):251-61.