Fig. 4From: Effects of the social environment during adolescence on the development of social behaviour, hormones and morphology in male zebra finches (Taeniopygia guttata)Plastic song and song during adolescence. a Group males showed higher rates of plastic song than pair males during early adolescence. b Mixed-age group males showed a higher increase in song motif rate than juvenile group males and juvenile pair males in late adolescence. For details, see text. Shown are means ± SE for each age and lines from the model with the best fit. Sample sizes are shown directly above the x-axisBack to article page