article thumbnail

Are Redpolls Just One Species?

10,000 Birds

That impressive number is a testament to the exponential advances in DNA-sequencing technology, but the researchers are quick to note it’s still less than 1% of the total genome.). Furthermore, another redpoll species found in Europe—the Lesser Redpoll—also had extremely similar DNA sequences.

Species 252
article thumbnail

Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

The majority of wildcats live today in Africa, and virtually none of them have provided the DNA from which supposed histories of domestication have been constructed by researchers. Also, feral Cats on islands seem to be a serious problem, causing the extirpation of some indigenous species. They are invasive species.

Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Trending Sources

article thumbnail

New Research Examines How, and Where, Birds Fly

10,000 Birds

It reports on research that attempted to uncover whether flight originally started as a running leap, or a misdirected fall. The authors, whose paper appears in Biology Letters , emphasize that no baby birds were harmed during the research. Researchers plotted eBird sightings against satellite imagery of U.S. The verdict?

Research 213
article thumbnail

A Guide to Some Possible Bird Species Splits in Costa Rica

10,000 Birds

These and several other species might end up being armchair ticks if and when we take a closer look at their evolutionary history. Taxa that could end up being split into one species occurring north of the Isthmus of Tehuantepec, and one south of the isthmus. (2). Two subspecies of the same species that differ within Costa Rica. (4).

article thumbnail

Grallards: New Zealand’s Next Extinction or Newest Species?

10,000 Birds

The obvious choice was the Mallard , that plucky familiar northern hemisphere species that is the father of the even more familiar domesticated duck. In fact, as the species was quickly identified as as creating hybrids with Grey Ducks, the opinion was by the 1920s that the species shouldn’t be released further.

Species 180
article thumbnail

How to Help Cerulean Warblers, Other Migrant Species, and Resident Birds in Costa Rica

10,000 Birds

A wonderful variety of bird species are waiting to be seen and among them are many a birder’s favorite avian group, the wood-warblers. Among the most desired bird species during May migration, brightly colored, beautiful and boldly patterned, how can a birder not get hooked on spring warblers? Great Green Macaw!

article thumbnail

Adventures of a Louisiana Birder: One Year, Two Wings, Three Hundred Species–A Book Review

10,000 Birds

Marybeth Lima’s ‘real life’ work is academic, she is a professor of biological and agricultural engineering as Louisiana State University with research interests in community-based design and service-learning in engineering. Adventures of a Louisiana Birder: One Year, Two Wings, Three Hundred Species.

Louisiana 264