Figure 1

Effects of migratory strategy, breeding site area and breeding phenology on fitness parameters, according to the final model for each analysis. (a,b) Relative year-round and pre-incubation condition of adult lesser kestrels captured in the two study areas. Migratory strategy of individual was not an important predictor of year-round condition, but was an important predictor of pre-incubation condition. (c) Breeding phenology (scaled first egg date) of lesser kestrel clutches in the two study areas. (d) Lesser kestrel clutch size did not vary with study area, but decreased over the season. (e) Chick condition from lesser kestrel clutches in the two study areas. Migratory strategy of clutch parent was not an important predictor of breeding phenology, clutch size or chick condition. Points with error bars (Figures a-c and e) or solid line with surrounding dashed lines (Figure d) represent model-predicted means and associated 95% confidence intervals. All continuous variables were scaled and centred via z-score transformation.