Complex sentence: During this stage, juveniles listen and memorize the song pattern of their tutor and produce subsong, characterized by the production of highly variable syllables and syllable sequences; subsong is thought to be analogous to babbling in human infants.
Split into simpler sentences: During this stage, juveniles listen and memorize the song pattern of their tutor and produce subsong, characterized by the production of highly variable syllables and syllable sequences. Subsong is thought to be analogous to babbling in human infants.