Electronic supplementary material for visual modelling and temperature effect from Do I stay or do I go? Shifts in perch use by lizards during morning twilight suggest anticipatory behaviour

In this electronic supplementary material, we provide detailed protocol for calculating the contrast of the lizards against the grass background using visual modelling of the egrets. We also provide a section discussing why temperature effect was excluded in this system. Relevant table (Table S1), figures (Figure S1 – S4) and references are provided.