Stay in touch with EcoHearth

Eco Action Tools

Knowledge is power only if you use it. Below are tools to help you get your eco activism on.


Get Leave The Trail Behind

email iconvia Email RSS iconvia RSS

Rich Bard

Rich Bard photo courtesy of Rich BardRich Bard is a wildlife biologist who began his career as a zookeeper. Having spent most of his adult life moving around the country working with various wild animals, he settled near the coast of Maine in 2004. Amid the striking beauty of this remote region, he passes the time with his family, hiking, snowshoeing, gardening and watching the tide ebb and flow.

Eco Product Pick

Austin Air HealthMate Jr. Plus Air Purifier

Breathe better. The Austin Air HealthMate Jr. Plus removes sub-micron particles, chemicals and noxious gases from your home or office. See more items in our Eco Shop.

When Is a Coyote Not Just a Coyote?
Monday, 12 May 2014 00:00  |  Written by Rich Bard | Blog Entry

Coyote Courtesy of DefendersenewsWhat exactly is the creature that roams the forests and fields of the northeastern US and eastern Canada under the name “coyote?” Can it be the same species as that found in the western US, an animal half the size of its eastern counterpart? Is it a completely different animal? Or is it some combination of coyote mixed with dog or wolf genes? I’ve written about coyotes a few times now and, based on the comments I get, people want to know more about this mysterious creature.

The animal now known as the “eastern coyote” has been a source of debate, speculation and rumor since it first appeared and then spread across the eastern US from the 1950s through the 1970s. I remember as a boy in upstate New York in the 1970s, being very afraid of something people called a coydog. Though I actually didn’t know what it was at the time, I now know it was what people believed it to be: a coyote-dog hybrid. Only recently, with the help of DNAtesting, have facts begun to take the place of opinion about the origins of the largest predator in the region.

The story begins west of the Mississippi River, where coyotes have lived for millennia. Researchers speculate that when wolves were exterminated in the east, coyotes began to expand their range to exploit the untapped resources (i.e., food and territory) that had previously been used by wolves. It took many generations, but coyotes eventually arrived in the east by one of two major routes. Their first path was south of the Great Lakes. These coyotes have now spread across the southeast and mid-Atlantic states and closely resemble their western cousins. Coyotes that followed a different route—north of the Great Lakes—have a much more interesting story to tell, only some of which I have space for here.

As these northern coyotes filled unoccupied territories on their way eastward, over many lifetimes, they eventually found a remnant population of wolves—the same kind found today around Algonquin Provincial Park in Ontario, Canada. Without getting bogged down in too many details, these wolves are more closely related to coyotes than other wolves that their relatives may have encountered in the recent past—like those in the Rocky Mountains, the American Southwest and the Canadian West—making it more likely that these closely related species would hybridize.

Successful reproduction by members of different species is rare in nature, but it can happen in some cases. Usually, behavioral differences keep animals from ever even having the idea to breed with other species. Different breeding seasons and mating rituals, for example, can keep species apart. In cases where individuals do crossbreed occasionally, like horses and donkeys, the offspring are often sterile, making the hybrid an evolutionary dead-end. In the case of migrating coyotes and the Algonquin wolf (now usually known as the “eastern wolf”), the result was a bigger coyote that took on some wolf traits, although the animal resembles a coyote for the most part.

Today, about one-third of coyotes in Maine have genes that came from wolves. The amount of wolf genes varies from one coyote to the next, but it appears to have little to do with the appearance of the animal. A coyote that looked nearly like a wolf was recently found to have a very low percentage of wolf genes, while another—a small female that looked much more like a purebred western coyote—had 89% wolf genes. The specific genes an individual carries seem to have more to do with appearance than the percent of wolf or coyote genes.

So, here we are today. The animal we New Englanders call coyote is very different than the one that has lived in the West since humans arrived in the area thousands of years ago. Some may look like wolves, and may in fact carry some wolf genes, but for all intents and purposes, the animal is a coyote. For people who aim to restore wolves to the Northern Forest, these wolf-like animals are muddying the waters and making it less likely that a pure wolf who wanders into the US from Ontario would ever be detected and afforded the protection of the Endangered Species Act, as any pure wolf in the east is legally entitled.

In the short term, many New Englanders—myself included—are content to share the woods with a predator that looks, behaves and, in some ways, spiritually “feels” like a wolf, whatever we choose to call it.

Additional resources:
Howling in the Darkness: Are There Any Wolves Left in Maine?
Expect a Backlash Against Coyotes Following Attack
A Coyote Encounter
Project Coyote
Eastern Coyote Research
Eastern Coyote Institute

Help the Earth, Spread the Word: Share this content with family and friends by clicking on the "Email This" or "Share This" link below right. Then see TODAY'S TOP STORIES.

Copyright EcoHearth. All rights reserved. Reprint Policy

Comments (3)add
Written by Abe Gilbert , January 29, 2010
What an interesting story! Those wolves must have had plentifull food supplies to not have eaten their coyote mates immediately after breeding. This is indeed a rare opportunity to be able to see the evolution of a new species actually taking place in relatively recent history.
Report abuse
Written by Rich Bard , January 26, 2010
Thanks John,
Actually I did come across when I was doing some research for this blog entry. I was surprised to see Jon calling coyotes "coywolves." The article (pdf)[] you mention was put on the website after I wrote this entry, so I missed it. Thank you for pointing it out.

There is much more in the article than I can get into here, but I do agree with most of his reasoning. It is logical that an interbreeding population, like the coyotes in the northeast US and eastern Canada would be relatively homogenous - in other words, they would likely all have wolf genes, not just some of them as was claimed by the research I consulted when writing the entry. His genetic research appears to confirm this.

Another very interesting finding is that interbreeding between coyotes and eastern wolves was probably widespread among the migrating population, rather than just a few individuals that then happened to be the founders the eastern coyote population.

I will be interested to see what effect this paper has on our understanding of coyotes and the future direction of their management. I don't expect to see any implementation of Jon Way's recommendation that hunting and trapping of coyotes cease, so that they be allowed to naturally evolve into more wolf-like animals without human interference.

Again, thank you for your comment and bringing Jon's article to my attention.

Report abuse
Written by John Glowa , January 26, 2010

I encourage you to go to and contact Jon Way. He and Brad White have collaborated on a DNA study which concludes that ALL "coyotes" in New England are eastern wolf/coyote hybrids and should be referred to as "coywolves". The study did not include the larger gray/eastern wolf hybrids that are also attempting to colonize the northeast. They are another story. Upon reading the article and talking with Jon, you may want to amend your blog. Regards, John Glowa

Report abuse


Eco Tip

Stop requesting ATM receipts. Why destroy trees and add to the ATM tumbleweeds blowing around bank machines? Instead, check your balance on screen and write down that number and your withdrawal amount. More tips...

Eco Quote

Let us a little permit Nature to take her own way; she better understands her own affairs than we. - Michel de Montaigne, translated   More quotes...