The sleeping bird gets the song. Focus on: "HVC neural sleep activity increases with development and parallels nightly changes in song behavior".
Miller
Julie E
JE
White
Stephanie A
SA
D000819:Animal Communication; D000818:Animals; D053400:High Vocal Center / Q000166:cytology* / Q000254:growth & development*; D008297:Male; D009474:Neurons / Q000502:physiology*; D012890:Sleep / Q000502:physiology*; D020308:Songbirds / Q000502:physiology*