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Keywords: barbules
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Journal Articles
J Exp Biol (2013) 216 (23): 4358–4364.
Published: 1 December 2013
...Jan Tinbergen; Bodo D. Wilts; Doekele G. Stavenga SUMMARY The feathers of Amazon parrots are brightly coloured. They contain a unique class of pigments, the psittacofulvins, deposited in both barbs and barbules, causing yellow or red coloured feathers. In specific feather areas, spongy...
Includes: Supplementary data