Somewhere over the rainbow 48 million years ago, a happy little blue bird flew—until it soared over a lake belching toxic gases and died. The lake’s sediments then entombed the bird’s body, ...

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 whose ...

A pair of hyacinthine macaws, Anodorhynchus hyacinthinus. Image: The Guardian. Most avian plumage colors are the result of different types of pigments that are deposited into feathers while they are ...

To understand birds - their social relationships, their choices, even their feathers - you need to understand the way they ...