The blue jay bird is famous for its brilliant blue feathers, but these feathers are not blue. Unlike most other birds, these birds lack blue pigments in their plumage.

Plumage and behavior differ greatly between ... Both the Steller’s jay and the blue jay have conspicuous crests and wings and tail barred with black. See also the Florida scrub-jay and the ...

While some plants can produce blue pigments because of anthocyanins, most creatures in the animal kingdom are unable to make ...