Supplementary material to BEH 3780

Video 1. Experiment with an individual of Boana albomarginata in a view from above, showing the four speakers with high, medium and low-pitched calls and the white noise. A white circle indicates the individual of the trial.

Figure A1. Frequency response of speakers used in the experiment (Frequency axis is in log scale). 

Figure A2. Average percentage of pixels in each colour bin of photographs with their respective 5% confidence interval.

Figure A3. Density plot between Scaled Mass Index (SMI) and orange and red colours.