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 ...

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.

New research from CU Boulder confirms that there are not, in fact, multiple species of Redpoll Finches, as previously thought For birders struggling to figure out what kind of Redpoll they’re watching ...

The reason why the find is important to science is because this represents the first empirical observance of an animal undergoing speciation. The find has come about after biologists have been ...

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 ...

A long time ago in a galaxy far, far away, R2-D2 beeped and booped—and now birds that copy the Star Wars character are giving ...

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 ...