Figure 1

Comparison between Figure 2 from Møller and Cuervo and the data it represents. Figure 1a: Møller and Cuervo's Figure is copied directly from the PDF file (solid circles) and overlain with the same plot, based on the dataset given in Møller and Cuervo's Supplementary material table one (open circles). The arrowed data point represents Vireo olivaceus, a species for which data were available in one of the papers cited by Møller and Cuervo, but not used. This outlier greatly weakens the regression. Figure 1b: As for Figure 1a except this time the overlay data are based on values I extracted from the same source set listed in Møller and Cuervo's Supplementary material. Many discrepancies are apparent.