Univariate ANOVA outputs.

Summary of ANOVA results describing differences in the proportional photoreceptor catches between eggs within versus between unmanipulated host nests. For each photoreceptor type, ‘Mean (SE)’ represents the proportionate receptor catch per egg, and standard error. JNDs values indicate discriminable chromatic difference between two eggs, as perceived by avian visual physiology (see Methods). For JNDs, mean JND values are shown both for within (W) and between (B) nest comparisons. Significant p values for JNDs indicate that mean discriminability was greater between nests than would be expected based on variation within nests. For all measures, there is significantly more variation between nests than within clutches.Univariate ANOVA outputs.