 Optimal timing for the males depends on the status of the clutch, and as a result the male frequently enters and remains near the nest during the egg-laying period.For females it is important not to desert too early so that the male does not also desert the eggs, but also not too late else the male deserts before the female does.Females adapt by being very aggressive towards males that try to approach the nest as well as hiding one or more eggs so that males do not have full information on the clutch status.