Figure 4
From: Urban sparrows respond to a sexually selected trait with increased aggression in noise
Post-playback approach distance results. (a) Boxplot of approach distance for post-playback for three stimulus treatments: (A) fast trill, wide bandwidth (7.11 ± 0.96 m), (B) fast trill, narrow bandwidth (7.54 ± 1.41 m), and (C) slow trill, wide bandwidth (8.54 ± 1.19 m). All post-hoc comparisons between treatments p > 0.05. (b) Linear regression of male approach distance during post-playback and territory noise (β = −0.05, p = 0.012).
