Fig 1. Food characterization and preferences among wild pigeons. A. Density plots of food preferences for individual from the two studied populations. Food preferences are represented as the fraction of each food type consumed by an individual during a 20-min trial (N= 158 trials for 42 individuals). Trials for pigeons from MoiĆ  are shown in purple and those from BCN in green. B. Differences in nutritional and morphological similarity between food type (darker colors indicate larger differences). C. Characterization of nutritional and morphological differences between food types.D. Niche position and breadth of the two studied wild populations (mean and standard error) in the space defined by resource differences.
Table 1. Repeatability of the niche centre and breadth in the short and long-term . Repeatability is the intra-class coefficient of each measure (i.e. phenotypic variation among individuals/total phenotypic variation). The abbreviations l-95% CI and u-95% CI refer to the lower and upper 95% credibility interval, respectively. The long-term assay was conducted one year after the short-term assay.