Variation in breeding phenology in response to climate change in two passerine species

This paper evaluates how climate change have influenced laying dates of blue- and marsh tits in a population in southern Sweden, from 1983 to 2021. Specifically, we evaluate how daily maximum temperature in an estimated time-window (R package: climwin) and the temperature change in this window influence the duration of breeding season in the two species, i.e. the variation in laying dates within the population. <br> For more info, see README-file.<br>