Yellow House Finch: Normal or Not? House finches are common birds that brighten up backyard feeders across the United States. Bird-watchers throughout the country admire their rosy plumage and cheery ...

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, ...

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 ...