Peter Marra: Energizing the Base

It’s hunting season, a fitting time for Peter Marra to be reiterating his call for the killing of outdoor cats. Earlier this week he delivered the keynote address at the annual conference of the Ohio Community Wildlife Cooperative, and tonight he’ll be in Baraboo, Wisconsin, presenting “Cats, Birds and You: Keeping Cats Indoors.”

This latest stop on Marra’s Extermination Nation tour is a homecoming of sorts. It was at the nearby University of Wisconsin–Madison, in the early 1990s, that the modern witch-hunt against outdoor cats began with the infamous Wisconsin Study. Using little more than cocktail napkin guesswork, UWM professor Stanley Temple and graduate student John Coleman “estimated” that outdoor cats killed up to 219 million birds in rural Wisconsin alone. [1] Although Marra’s “estimates” are significantly higher, his (flawed) methods—and motive—are striking similar to Temple’s.

(Fun fact: The two were among 10 authors—including Nico Daphiné, Marra’s former post-doc, who was forced to resign after she was found guilty of trying to poison cats—of a 2010 letter calling for conservation biologists to “counter trap-neuter-return.” [2])

Nearly eight years later—and faced with more pushback than he’d apparently expected—Marra’s still reworking his message for mainstream audiences. Look past the media-friendly rhetoric* and cowardly back-pedaling, though, and his call to action (just like Temple’s) is unchanged: the killing of cats on an unprecedented level. Read more

“Cat Wars” Roadshow, Part 1

Somebody needs to explain to the folks at the Academy of Natural Sciences of Drexel University the importance of managing expectations. According to the institution’s Facebook page, Peter Marra, who’s speaking this evening as part of its Town Square series, “will outline the evidence he and co-author Chris Santella have presented in their new book Cat Wars: The Devastating Consequences of a Cuddly Killer.”

“He will discuss the scientific evidence confirming that free-ranging cats are killing birds and other animals by the billions and the devastating public health consequences of rabies and parasitic Toxoplasma passing from cats to humans at rising rates.”

Spoiler alert! Marra and Santella provide no such “evidence” in their book.

That’s not to say that Marra won’t have plenty to talk about of, course. Earlier this month, he ramped up his campaign of misinformation, scaremongering, and magical thinking with an appearance on WTTW’s Chicago Tonight in which he further misrepresented his junk science.

So, who knows what he’ll come up with tonight.

It’s more than a little troubling to see the Academy promote Marra’s witch-hunt, hosting him as part of a program “designed to engage and provide relevant educational content to the public on environmental issues.”

“Town Squares focus on critical global issues in environmental science by featuring prominent thought leaders and their findings on biodiversity, freshwater issues, climate change, and evolution. Environmental advocates, scientists, and community members come together for an opportunity to further their knowledge about environmental and sustainability matters through accurate, real-time scientific information.”

I don’t know about other events in the series, but I think it’s safe to say that many attendees of tonight’s talk will leave the venue less knowledgeable, not more.* On the other hand, if they’re looking for “real-time information,” Marra’s shown he’s more than willing to make up his “facts” on the fly.

* Even so, I’m sure Marra will have his supporters. Indeed, somewhere in the audience might be his former colleague, Nico Dauphiné, who left her prestigious post-doc position at the Smithsonian Migratory Bird Center after she was found guilty of attempted animal cruelty. Now Nicole Arcilla, she’s a post-doc researcher in Drexel’s Biodiversity, Earth, and Environmental Sciences department.

Peter Marra: Post-Truth Pioneer

Nearly four years before the terms fake news and alternative facts made their way into common usage, there were Peter Marra’s mortality “estimates.” Developed at great expense to taxpayers, Marra’s computer-generated figures suggest that outdoor cats kill up to 4.0 billion birds annually in the 48 contiguous states. [1] Even without getting into the details, it should be obvious that the claim is simply nonsense—since the best estimates available indicate that there are only 3.2 billion birds in the continental U.S.

Nevertheless, with the publication of Cat Wars: The Devastating Consequences of a Cuddly Killer late last year, Marra doubled down on his “estimates,” making this tidy bit of fiction the centerpiece of his campaign of misinformation, scaremongering, and magical thinking.

All of that seems like a lifetime ago now—before Donald Trump became President, and, together with his largely inexperienced and woefully unprepared staff of cronies, plunged us into a Bizarro World. Up is down, black is white, right is wrong. Foreign policy is made and unmade in 140-character outbursts.

Not to be outdone, Marra’s stepped up his game—misrepresenting his own work (which, again, was junk science to begin with) and proposing a new theory of urban ecology. Read more

Petition: Challenge Cornell University to Remain Neutral on “Cat Wars”

Given the junk science, red herrings, and desperate scaremongering that plague Cat Wars, why is Cornell University’s Lab of Ornithology rolling out the red carpet for co-author Peter Marra? Read more

The “Need” for More Killing?

The press is making it out that I am like Josef Mengele, but shelters already do this now. Last year millions of animals were euthanized because we don’t have the resources to take care of them.”

—Peter Marra, co-author of Cat Wars: The Devastating Consequences of a Cuddly Killer, in a recent interview with National Geographic


Even before Cat Wars was officially released (in print, anyhow), the pushback had begun. Among the more notable examples were Marc Bekoff’s blistering critique in Psychology Today and Gwen Cooper’s smackdown on the Hi Homer! blog (the likely source for that Mengele reference). More recently, Barbara J. King offered a much more tempered response on NPR’s Cosmos & Culture blog.

“It’s not a war against cats that we need. We should slow down, critically review the assumptions that underpin the science, and resist panicky, dire recommendations.”

All the while, Marra’s been trying to back away from his inflammatory rhetoric—witness the National Geographic piece, for example, followed by a Q&A with VICE.

One wonders: given the fact that he’s promoting the killing of this country’s most popular pet—on a scale that would dwarf anything this country’s seen—what did he expect? Read more

“By Any Means Necessary”: War is Declared on U.S. Cats

Cat Wars is, to anybody familiar with the topic, an obviously desperate attempt to fuel the ongoing witch-hunt against outdoor cats “by any means necessary,” including the endorsement of discredited junk science, an oceanful of red herrings, and B-movie-style scaremongering. The book’s central thesis—that outdoor cats must be eradicated in the name of biodiversity and public health—is, like the authors’ credibility, undermined to the point of collapse by weak—often contradictory—evidence, and a reckless arrogance that will be hard to ignore even for their fellow fring-ervationsists.

In early 2010, Peter Marra co-authored a desperate appeal to the conservation community, calling for greater opposition to trap-neuter-return (TNR). “The issue of feral cats is not going away any time soon,” he and his colleagues warned, “and no matter what options are taken, it may well be a generation or more before we can expect broad-scale changes in human behavior regarding outdoor cats.” [1] Since then, Marra, who’s been with the Smithsonian Institution’s Conservation Biology Institute since 1999 and now runs its Migratory Bird Center, has only become more desperate. Read more