These corvids are all visually striking in their own way, but perhaps none so much as the green jay, a tropical bird found in just ... bodies and sharply marked blue-and-black heads.

Whatever the evolutionary advantage, animals' color is inextricably intertwined with their environment, be it the bright ...

"These beautiful birds are considered uncommon for Bexar County and their vibrant blue crown and green feathers are a sight to see," the department wrote in its post on Monday, December 9.

The tropical rainforest nurtures some of the most striking and colourful birds in the world ... recognised by its striking blue upper parts, yellow underparts, a green forehead, and a long ...

Parrots, toucans, and other brightly colored tropical birds are typically found exactly ... is an example of structural color. [Related: Why blue animals are so rare in nature.] ...

violet or blue, then emit the light in a lower-energy wavelength. Researchers described biofluorescence in 37 of the 45 known species of birds-of-paradise, found only in remote tropical forests ...