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Fig. 4. Comparison of adult male satin bowerbird reflectance spectra, either
measured using a spectrometer (solid lines) or predicted from thin-film
optical models (broken and dotted lines). Predicted spectra are modeled based
on measurements of barbule nanostructure from the individual whose measured
spectrum is shown. Model 2 (dotted line) closely predicted measured spectra
(solid line). By contrast, Models 1 (dashes and dots), 3 (short dashes), and 4
(long dashes) were poor predictors of measured spectra.