Testosterone increases repertoire size in an open-ended learner: An experimental study using adult male European starlings (Sturnus vulgaris)

Authors: Alain J. M. Van Hout, Rianne Pinxten, Veerle M. Darras, Marcel Eens

Publication/Journal: Hormones and Behavior

Keywords: adult song learning, european starling, repertoire turnover, repetition rate, sexual signal, song bout length, sturnus vulgaris, testosterone