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 ...

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 ...

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 ...

Mountains both help create new species and subspecies of the rosy finch and keep them distinct, according to new research from CU Boulder Speciation—how species come to be—and how species diverge are ...

New research could ruffle some feathers in the birding world. It finds that Redpolls, a bird found in the Arctic that will sometimes come to the Southern latitudes during the winter and can be hard to ...