Previous reproductive success informs nest-building decisions

Evelyn J Alexander, Sophie C Edwards, Elisabeth G Chapman and Susan D Healy

Behavioral Ecology, 2025, vol. 36, issue 2, 611-621

Abstract: Behavioral outcomes, including foraging efficiency and reproductive success, often improve with age and with repeated breeding attempts. Here we examined the role of previous experience on the nest-building behavior of wild blue tits Cyanistes caeruleus. In particular, we focused on how previous success or failure in rearing nestlings shapes nest-building decisions in subsequent years. We found that previous breeding outcome is important for predicting nest building decisions in blue tits: birds that had previously raised fledglings added insulating material at a similar rate as they had when they built their first nest. Some birds that had been previously unsuccessful changed their rate of adding insulating material and then were more likely to produce fledglings. These responses indicate that at least some of the decisions made by wild nest-building birds are based on their own experience of past breeding seasons.

Keywords: blue tit; nest building; nest design; reproductive success; reproductive experience (search for similar items in EconPapers)
Date: 2025
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