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 islands ...

Think telling sparrows apart is just not worth the effort? Our tips might change your mind. Identify sparrows by habitat, ...

Freed from the threat of invasive predators, Galapagos birds are performing astonishing feats of return and innovation – 200 ...

Winter 2021-22 should not be an irruption year, which would send finch species like the evening grosbeak from the arboreal forests of northern Canada south as far as backyard feeders in Pennsylvania.

Spruce trees provide two types of food; cones like this one that contain seeds for birds to eat and needles that caterpillars eat. / BILL DANIELSON / For the Gazette Sign up for the Gazette's morning ...

To put it simply, volcanoes erupt while bird populations irrupt. An “irruption” is described as “a dramatic, irregular migration of large numbers of birds to an area where they are not typically found ...

Despite the traditional view that species do not exchange genes by hybridisation, recent studies show that gene flow between closely related species is more common than previously thought. A team of ...

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, ...

HONOLULU (KHON2) — An endangered finch is once again calling Kuaihelani, also known as the Midway Atoll, home after being away from its home for 80 years. On July 21 and July 22, U.S. Fish and ...