This layering lets the feather reflect bluish light from many viewing angles, and it’s these non-iridescent structural colors that make blue jays blue and help make some parrots green.

In another key experiment, the researchers compared gene expression from feathers of green and yellow versus blue budgies. Those studies showed that MuPKS was highly expressed in birds of both ...

I found a blue bullfrog in a marsh in Virginia. It was mostly blue with some gray blotches; it did not have green anywhere on ... Structural blue coloration of feathers appears in many birds.

Yellow feathers topped with blue nanostructures makes rosy-faced lovebirds’ feathers green, while blue with red psittacofulvins could create purple, Corbo says. When factoring in melanin ...

Melanosomes linked with blue feathers are much longer than they are wide Sven Traenkner/Senckenberg Research Institute and Nature Museum in Frankfurt A prehistoric Eocoracias brachyptera bird ...