Figure 1
From: The Topobiology of Chemical Elements in Seabird Feathers

High resolution X-ray fluorescence microscopy images of elemental distributions within a breast feather from a Flesh-footed Shearwater (Ardenna carneipes). (A) Photographic image of a sample feather; (B) reconstructed Compton inelastic scatter; (C) Ca distribution; (D) Br distribution; (E) Cu distribution; (F) Fe distribution; (G) Zn distribution; (H) typical X-ray fluorescence spectrum obtained from Flesh-footed Shearwater breast feathers. The maximum values for the observed elements are; Ca, 7650 ppm; Cu, 113 ppm; Zn, 488 ppm; Br, 279 ppm; Fe, 345 ppm.