By Ellen Kalish
Every day, we are reminded how deeply connected our pets are to the natural world around us.
Domestic cats—descended from the Near Eastern wildcat thousands of years ago—are cherished members of our families. They greet us at the door, curl up beside us, and bring comfort in quiet moments. But they also carry a powerful instinct that hasn’t faded with domestication: the drive to hunt.
For wildlife, that instinct can be devastating.
Free-roaming cats are the leading cause of bird mortality in the United States and Canada. According to research from the Smithsonian Conservation Biology Institute and the U.S. Fish & Wildlife Service, cats kill an estimated 1.3 to 4 billion birds and 22 billion small mammals, amphibians, and reptiles each year. Behind those numbers are the very species we work to protect—songbirds, fledglings, and small animals that arrive at our center injured, orphaned, or worse.
At a time when nearly 40% of the world’s bird populations are in decline, this is a conservation challenge we cannot afford to ignore.
But this is not a story of blame—it’s a story of opportunity.
Organizations like the Humane Society of the United States emphasize that keeping cats indoors is a solution that benefits both wildlife and the cats we love. Indoor cats live longer, healthier lives. They are protected from disease, parasites, traffic, and predators. They are safer—and so is the wildlife around them.
We see the impact of this choice firsthand.
Each spring and summer, our call volume surges as young birds leave the nest and encounter a world full of hazards. Among the most common—and preventable—threats are encounters with outdoor cats. Many of these patients never get a second chance.
That’s why small actions at home matter so much.
By choosing to keep cats indoors or providing safe outdoor alternatives like enclosed “catios,” you are directly contributing to wildlife conservation. These screened-in spaces—ranging from simple window boxes to larger enclosures—allow cats to enjoy fresh air and stimulation without putting birds and other animals at risk.
Leash training is another growing option, offering supervised outdoor time in a controlled, safe way.
For me, this issue is personal. Thirty years ago, my father—an avid birder—made the decision to bring his cats indoors after witnessing one catch a bird at the feeder. At the time, I had three indoor-outdoor cats and felt overwhelmed by the idea of changing their routine. But with patience and gradual adjustments, the transition proved not only possible, but transformative.
Today, I often reflect on how that one decision rippled outward—protecting not just the cats, but the wildlife around them.
How You Can Help—Right Now
If you’re considering making the transition, here are a few ways to help your cat thrive indoors:
- Spay or neuter your cat to reduce roaming behavior and improve long-term health.
- Create daily playtime to engage natural hunting instincts with toys and movement.
- Add vertical space like cat trees or shelves for climbing and resting.
- Provide sunny window perches to keep your cat entertained.
- Consider a “catio” for safe outdoor enrichment.
- Grow cat grass indoors for a natural grazing option.
- Keep litter boxes clean and in quiet, accessible areas.
- Separate food and water stations to encourage hydration.
- Use microchips and ID tags to ensure safe return if needed.
- Incorporate grooming and bonding time to reduce stress and shedding.
For those unable to keep cats strictly indoors, consider restricting access during dawn and dusk when wildlife is most active, or using bells on collars.
By keeping your cat indoors, you are helping to prevent unnecessary suffering, reduce the number of wildlife emergencies, and give more animals a chance to return to the wild where they belong. Thank you for being part of that impact.
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