There are now at least 13 species of finches on the Galapagos Islands, each filling a different niche on different islands. All of them evolved from one ancestral species, which colonized the ...

Keeping a bird can be a serious commitment because some species can live for several decades and need a surprising amount of ...

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 ...

One reason for this is how new finch species emerge in response to ecological change fairly quickly, called the theory of ecological speciation. Now, scientists have identified a key connection ...

Fortunately, no species went extinct. Instead, this change resolved a long-held misunderstanding about the redpoll finch. On Thursday, the American Ornithological Society—the organization that ...