Fig. 3
From: The role of climate factors in geographic variation in body mass and wing length in a passerine bird
Correlations between body mass of P. montanus and climate factors. a Air pressure (df = 46, t = −4.088, p < 0.001), b relative humidity (df = 46, t = −2.768, p = 0.006), c mean annual temperature (df = 46, t = −2.243, p = 0.026) and d annual sunshine hours (df = 46, t = 2.751, p = 0.006), at collection sites