Fig. 2. Raw (A) and normalized (B) reflectance spectra of an amelanotic Steller's jay feather, a normal blue Steller's jay feather (solid line) and a white chicken feather. Reflectance values in B were all divided by the peak reflectance value of each curve to obtain a maximum reflectance of 1. The spectra are presented both ways to facilitate comparison of both overall reflectance (A) and the shapes of the curves for the different feathers (B).