This difference in the rate of extra-pair copulation was because the two types of females differed in their sexual responsiveness scores during extra-pair trials (t61???=??????3.1, P???=???0.0026) and not because they received different amounts of male song (t61???=??????0.5, P???=???0.63).The consistency (between experiments 1 and 3) of individual females in their readiness to copulate (i.e. the