Figure 8.

Interactions between sex and temporal contiguity on average bout duration in opposite-sex courtship interactions. In opposite-sex courtship interactions, male pigeons, but not female pigeons, show a marginally significant increase in their average bout duration in the 3-s delay condition. Error bars indicate standard error. Significant differences between a time delay condition and the Live condition are indicated by asterisks over the time delay data point, *P < 0.05, **P < 0.01, ***P > 0.001.