It Will Take 3 Years And $1.5 Million, but Washington D.C. is going to count every single one of its cats. A coalition of groups, including PetSmart Charities, the Humane Society, The Humane Rescue Alliance and the Smithsonian Conservation Biology Institute are collaborating on “The D.C. Cat Count,” whose goal is to more accurately estimate the city’s cat population — both feral and pets. The groups hope the data will help improve efforts to manage the cat population.
In some cases, as The Washington Post reports, cats threaten protected or endangered species. But in other cases, they can be helpful at reducing pest populations, like rats. Groups like the Humane Rescue Alliance “have little sense if their programs are the lion’s share of adoptions in the city, or if their trap-neuter-return program is effective in helping to control the cat population.”
It’s not easy to gauge a city’s cat population by eye alone.
“Cats are hard to see,” conservation biologist Tyler Flockhart told The New York Times. “You see very few cats when you’re out walking around. And that’s because they’re secretive animals. When you see a cat, there is almost certainly more than one there.”
The project is unusual in both its scope — looking at the entire city — and its decision to include pet cats as well as feral ones.
After all, the project website notes, “the cat population in any area is … an interconnected and dynamic network comprised of unowned cats living outdoors, owned cats who may live either indoors or outdoors, and shelter cats who often move into or out of the other population segments.”
According to the site, the project will use a number of strategies to arrive at a total population count:
- “Camera trapping” — a camera triggered by an animal’s presence, not an actual trap — to estimate the outdoor cat population
- Household surveys to estimate the owned cat population
- An analysis of the number of cats at shelters
- A physical count of outdoor cats in sample locations, to compare with the camera trapping data
- A statistical model to explore “the interactions between cat population segments”
- The development of a set of tools to help other groups do similar counts
The project also hopes to roll out an app allowing residents to snap their own images of cats.