Parrots discarded dull colours, claim scientists, according to Inside JEB 17 June 2020 and Journal of Experimental Biology, published online 17 June 2020, doi:10.1242/jeb.225912. Most birds colour their feathers by producing a mix of two types of melanin pigment – eumelanin, which produces black and grey, and pheomelanins, which produce browns, reds and yellows. Birds […]
