Out of the thousands of bird species worldwide, the finch is just one of them, and its subspecies are found across the globe. In North America alone, there are 17 subspecies of finch, including the ...

Carotenoids are the underlying pigment for much of the enormous variety in color found across birds and form the basis for the colors red, yellow, and orange. In a study published in Current Biology, ...

When red-billed and yellow-billed finches mate, their offspring have orange bills. By studying the exact shade of orange in ...

April 23 (UPI) --The heads of Gouldian finches feature one of three different colors: yellow, red and black. Now, scientists know why the pressures of natural selection have failed to erase the ...

I remember looking out at the birdfeeder and seeing it crammed full of evening grosbeaks — large, black-and-yellow finches with large bills. They reminded me of big wasps, in a way. They would show up ...

If you have a bird feeder in the continental United States, you have almost certainly been visited by house finches. On both sides of the Mississippi their hungry flocks coat feeders like displays of ...