Boxplot of mean parasitemias.

The mean parasitemias (the number of haemosporidian cyt b gene copies per 10 ng of total DNA (host + parasite), as determined by qPCR, averaged across the three sampling time points: December, early March, and late March) of sedentary (filled, n = 17) juncos and migrant (unfilled, n = 9) juncos. Only infected juncos were included in this analysis. The horizontal lines inside the boxes represent the sample medians. The length of the box represents the interquartile range. Whiskers span all the data except for statistical outliers. Statistical outliers are points that are at least 1.5 box lengths away from the edge of the box.