Variable name Explanation Population "Fl is Florida, WI is Wisconsin, NY is New York" Year Year of data collection Male Band # Individual band number for each male SHz (Stand Hetero) Stadardized fenome-wide heterozygosity based on SNPs Capture date the julian date when 1=May 1 Total Cl1 AA alleles Total number of class I alleles in that individual (in terms of different AA's) - only counting alleles found in at least two individuals No Cl1 Rare alleles "Number of Rare class I alleles in that individual (rare alleles are found only in 2 or 3 birds; ie, <7% of individuals)" Tot Cl2 AA alleles Total number of class II alleles in that individual (in terms of different AA's) - only counting alleles found in at least two individuals No RareCcl2 alleles "Number of Rare class II alleles in that individual (rare alleles are found only in 2 or 3 birds; ie, <7% of individuals)" PCR: infection detected? 0=No; 1=Yes "Whether a bird was infected or not with blood parasites based on PCR; 0=No, 1=Yes" # infected cells per 4000 "the number of red blood cells infected with blood parasites per 4000 red blood cells counted, based on blood smears"