Behavioral NeuroscienceVoice changes in aging birdsong: A longitudinal study in adult male zebra finchesBy Michelle L Gordon, Arpita Gulati, Robin A. Samlan, Julie E. MillerExperiments in zebra finchesMechanismsPaperFundamental frequencySmoothed cepstral peak prominenceVocal durationVocal intensityT. guttataThe paperMichelle L Gordon, Arpita Gulati, Robin A. Samlan, Julie E. MillerUniversity of ArizonaBehavioral Neuroscience, 10 Aug 2026doi.org/10.1037/bne0000666PubMed 42574120