Table S1. Results of t- test ( feather, claw stable hydrogen isotope values, breeding latitude, wintering latitude, T, fat score, and body mass) comparing resident and migrant juncos. Results are given as mean ± SEM.
Table S2. List of total 3038 identified proteins and protein expression as area under the curve for each individual.
Table S3 . List of differentially expressed proteins between resident and migrant juncos. A protein was categorized as differentially expressed with threshold of false-discovery rate (FDR) of < 0.05.
Table S4 (a-c). List of significant gene ontology (GO) terms were extracted from the differentially expressed proteins in resident and migrant juncos (FDR < 0.05). The list of enriched GO terms was presented in three functional categories based on the properties of the identified proteins: (a) biological process (BP), (b) cellular component (CC), and (c) molecular function (MF).
Figure S1. Left panel: Stacked posterior probability density maps for feather (top) and claw (bottom) geographic assignments for all migrant juncos (J. h. hyemalis) individuals (n = 5), with the isotopic composition of each sample shown in the title of the map. Middle panel: From these maps, we retained the cells within the top 10% highest posterior probability for feathers (in yellow) and claws (in blue) to produce high probability ‘threshold’ maps, with seasonal range maps shown underneath. Right panel: Histograms represent the range of possible latitudes for each individual based on the threshold maps, with median latitude shown in the histogram title.
Figure S2. Left panel: Stacked posterior probability density maps for feather (top) and claw (bottom) geographic assignments for all resident juncos (J. h. carolinensis) individuals (n = 5), with the isotopic composition of each sample shown in the title of the map. Middle panel: From these maps, we retained the cells within the top 10% highest posterior probability for feathers (in yellow) and claws (in blue) to produce high probability ‘threshold’ maps, with seasonal range maps shown underneath. Right panel: Histograms represent the range of possible latitudes for each individual based on the threshold maps, with median latitude shown in the histogram title.