Bird diagram from the 1886 'A nomenclature of colors for naturalists : and compendium of useful knowledge for ornithologists' by Robert Ridgway (via Smithsonian Libraries) Colors in the 1912 'Color ...
HKU and BIOPOLIS-CIBIO Biologists Reveal the Genetic ‘Switch’ Behind Parrot Color DiversityRosy-faced lovebirds are common and colourful household pets. Parrots such as these utilise unique yellow and ...
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