Fig. 1From: Geographical location affects size and materials used in the construction of European Pied Flycatcher (Ficedula hypoleuca) nestsMean wall thickness (orange) and base thickness (blue) in the total nest plotted in the appropriate geographical location on the island of Great Britain (facing east) using 3D maps within Microsoft Excel 2016. The view is facing east so the north–south axis is left to right. White scale bar = 2.5 cm. Mean and standard deviation values are reported in Additional file 1: Table S1Back to article page