Learn what a house finch looks like and how to attract one. Find out facts about the house finch nest, eggs, range, habitat ...

The key genes change the chemical structure of the pigment molecule through the actions of an enzyme which adds just one atom ...

The attractive house finch is one of the more common and recognizable ... Male: the breast, rump, and front of the head are typically red, but the color can vary to orange or occasionally yellow.

Sometimes the most common things are extraordinarily beautiful, especially if we just slow down and really take a look. The ...

Common and hoary redpolls are 2 closely related finches ... first-year birds resemble an adult female, but they tend to be buffier. Juvenile: brown and streaked, it acquires the red cap in the ...

It’s that time of year again. Fall migration is essentially over and, while we’ll miss most of the colorful bird species we ...

and the opposite in finches, from bright yellow to bright red. The evolution of colour in birds has been the focus of attention since Charles Darwin used them in outlining his theory of evolution ...