Birds boast some of the most vibrant colors among terrestrial animals. Our pretty avian friends have inspired our Democrat and Chronicle photographers for years and captured the ...

Bright colors, however, are not genetically inherited. Like most birds, finches can’t actually make red or yellow pigment. Rather, these molting males incorporate pigments from the foods they eat.

For a reddish-beaked bird called the zebra finch, sexiness is color-coded. Males have beaks that range from light orange to dark red. But to females, a male's colored bill may simply be hot, or ...

The birds were better at recognizing subtle differences within each color category, but less prone to treat colors from opposite sides of the boundary as "either/or" compared to the red-orange range.

I love spring … the colors, the smell, the sounds of singing birds. After a winter of gray skies, white landscapes and no smells — I just love spring. I am fortunate enough to spend a l… ...

In both studies, the birds were better at distinguishing some color pairs than others, even when those pairs were equally far apart on the color spectrum. By analyzing where these shifts in ...

Birds may not have a word for maroon. Or burnt sienna. But show a zebra finch a sunset-colored object, and she'll quickly decide whether it looks more "red" or "orange." A new study shows that ...

They also studied preserved eggs from a museum, which had been collected 20 to 30 years earlier. Using spectrophotometry and computer modeling, they analyzed how egg colors and patterns had changed ...

Birds boast some of the most vibrant colors among terrestrial animals. Our pretty avian friends have inspired our Democrat and Chronicle photographers for years and captured the imaginations of ...