Fig. 2
From: Testosterone dynamics of migratory birds during stopover
A negative relationship between the change in body condition (scaled mass index in g) and the change in testosterone concentration (pg/ml) between repeated samplings of male Subalpine Warblers (Curruca iberiae) during a springtime trans-Saharan stopover in Yasmina, Morocco. The numbers above each point indicate the days between the two samples (which was not significantly related to testosterone). The shaded area shows the 95% confidence interval.
