During sensory learning, the chicks hear songs around them and remember them

First comes a sensory learning phase,when the baby finch hears the songs sung around it and commits them to memory.The bird starts to vocalize during the motor learning phase,practicing until it can match the song it memorized.As the bird learns, hearing the tutor’s song over and over again is helpful—up to a point.If he hears it too many times, thei mitation degrades—and the source matters.
If the song is played through a loudspeaker,he can’t pick it up as easily.