Across birds, male age is the most consistent predictor of extra‐pair siring success, yet little
is known about age effects on paternity over the lifetime of individuals. Here, we use data …

In birds, extrapair paternity (EPP) constitutes an alternative mating strategy, with potentially
important fitness consequences for both males and females and their offspring. Several …

Life‐history theory predicts that whenever expensive activities overlap, there will be a trade‐
off between the activities. In a field study of Blue Tits Cyanistes caeruleus in Norway, we …

Extra‐pair paternity (EPP) is the consequence of the interactions between a social pair and
extra‐pair males during the female's fertile phase in a specific social context and ecological …

In animals, reproductive performance typically improves over time early in life. Several
ultimate and proximate mechanisms may contribute to such an age-related improvement …

Despite extensive research on passerine reproduction, it remains difficult to predict which
traits of individuals, nesting populations and landscapes drive extrapair paternity (EPP). Two …

Extra-pair paternity (EPP) is the consequence of the interactions between a social pair and
extra-pair males during the female's fertile phase in a specific social context and ecological …